To add comments or start new threads please go to the full version of: My Teory About Ecerything
PhysOrgForum Science, Physics and Technology Discussion Forums > Nanotechnology & Quantum Physics > Quantum physics

DavidD
How universe was made? Universe maybe became from many waves going into one point and then those waves crash to each over and then became Big Bang. Another version is, that from two oposit directions was moving two forces and they like strings crach to each over and became Big Bang, this time those forces can be some specific waves from two oposit directions and maybe those force craching to each over all the time from up and down and that's becouse our universe is circle shape and not a sphere shape. Galactix is circle shape becouse stats rotating about galactic center. If galactics don't rotating about universe center, then this great expaining my teory about crashing two forces from opposit directions.

After big bang was going very big and unusual force, which make smallest particles fluctation and became neutrons, electrons and protons and many photons. Why we alvays obtaining only this 4 elements? Becouse another smallest particles fluctation mading only this stable elements, which taking minimum space and energy... All over particles, mesons, miuns, pions, neutinos, positrons, antiparticles are unstable and can't exist for long time. This all particles may exist becouse, all universe becoming wider and wider and going to all directions from begining of big bang and this massive very large and energy flying in all directions from big bang center makes specific laws of smallest particles (Planck legth size) fluctations and those fluctations holding all matter in 'visible phorm' and that's becouse this 4 elements can exist.

All kinds of fields (electromagnetic, gravitation, strong force, culon force) is result of smallest particles fluctations. Information between those smallest particles can be passed with infinity speed, becouse those smallest particles is in permanent contact. But energy between those smallest particles can't be passed faster than light. So this explains such thing like superposition and entanglement and explains why nothing can't travel faster than light. Why sound going with some finity speed about 350 m/s in air and about 1400 m/s in water and about 4000 m/s in solid matter? Becouse atoms size is finity and those atoms moving with finity speed, the higher temperature, the faster speed of sound in air. So those smalles particles can't move with infinity speed and they size is finity. So from big bang all mater and all smalest particles is moving with fluctation and with finity speed and that's becouse speed of light is 30^8 m/s. Anyway, finitnes of smallest particles size and that they always touching each over many explains, why information can be passed faster than light (like in superposition) and why energy can't be passed faster than light, like photons and all kinds of fields.
Gehn
QUOTE (DavidD+Oct 25 2007, 07:48 AM)
How universe was made? Universe maybe became from many waves going into one point and then those waves crash to each over and then became Big Bang.

And where did these waves come from? And why were they all going in the same direction?

- Gehn biggrin.gif
DavidD
QUOTE (Gehn+Oct 25 2007, 08:59 AM)
And where did these waves come from? And why were they all going in the same direction?


they going from diferent directions into one single point...
It's one from two possible things. And how you can explain How such many matter can fit in into one small singular point, from which became big bang?
In my teory this waves may come from accidental energies fluctations. How you can explain, that all cosmos matter was in one single point? In my teory energie is explained in same way, that if is some smalles particles and if between them no friction and they want take minimum space, then energie always was existing. It's the same absurdical to say, that particles was existing without motion, or particles exist in motion. In my teory energy explanation is the same as explanation why exist those smalles particles in infinity cosmos.
And Big bang don't explain who put in all energy into one singular point.
LeTUOtter
Your typing skills would suggest you're not from a native english-speaking country, but whatever.
Okay, before we even get into things, how much physics do you actually know? Do you even have any credentials, or are you just some guy living in a cabin with most of a high school education and a few children's science books (like the last guy we had here)? I'd be surprised if the PhD's even bothered with this "new" theory. dry.gif
DavidD
QUOTE (LeTUOtter+Oct 25 2007, 01:51 PM)
Your typing skills would suggest you're not from a native english-speaking country, but whatever.
Okay, before we even get into things, how much physics do you actually know?  Do you even have any credentials, or are you just some guy living in a cabin with most of a high school education and a few children's science books (like the last guy we had here)?  I'd be surprised if the PhD's even bothered with this "new" theory. dry.gif

My teory no more stupid than big bang teory or many universe teory...

In my teory all 'visible' matter (electrons photons, mesons...) moving like waves and information in superposition moving like touchiness of smallest particles each over and information passing with infinity speed. 'like waves' moving of protons, neutrons, making resistivity of smallest particles and so increasing speed need infinity increase power at near speed of light. photons moving like waves and to them don't need resistive to smallest particles, like don't need push very much air to pass sound. Photons moving with finity speed becouse smallest particles size is finity or becouse some energies fluctating with finity speed on some midle level between atoms and smallest particles. Everithing can be more dificult. IF some neutron traveling with speed of light, then he pushing more and more smallest particles, becouse all smallest particles want take minumum space, then becoming more and more complicated to find minimum space for many particles quicker and quicker. Or it can be, that at some midlle level neutron pushing fluctations of smallest particles and not directly the smallest particles.

If in Zander-interferometer experiment photon split into two parts, then it interference with himself and always reaching only one detector and if in one of traveling photons ways put obstacle, then photon traveling in two parts and he now is 'invisible' so now energy not will fly faster, than light and if one part crash to obstacle, then it on smallest particles lowest level 'invisibly' taking energy from another part with infinity speed, becouse smallest particles feel each over with infinity speed so one part is given to universe and universe gets back energy with infinity speed to part which crash into obstacle. Such blink.gif like you thinking, that that's was many universe efect and energy on visible highest level (atoms level) not was moving faster than light, becouse like was one photon he one and is observed.
If photon don't crash in obstacle (he going on another side) he still through invisible smallest particles chanale take energy (or this energy was taken by universe and backed to photon) from part which crashed in obstacle and now he flying like one photon and going to one or another detector with 50%/50% probability. Or another version with 25%/25% probability (interesting do sombody know that is that probability?). But I think photon going with 50/50% probability and therefore it's means, that one photon part was traveling through obstacle and was taking information about photon (for smalest particles everthing possible). So one part go through obstacle, take information, that there is obstacle and then two parts became photon and with consisting information into two parts and knowing one part information about obstacle.

A little bit correction. If there is bostacle on the way of one or another photon part, then photon 50% crashing to obstacle and 25% reaching one detector and 25% reaching another detector. So photon don't going through obstacle. Part of photon don't going through obstacle, it's backing to another part of photon with infinity speed if another part still flying and photon was observet not in obstacle. With infinity speed becouse part of photon was given to universe and universe give this part of energy to another traveling part back with infinity speed.
LeTUOtter
QUOTE (DavidD+Oct 25 2007, 09:13 AM)
My teory[sic] no more stupid[sic] than big bang teory[sic] or many universe teory[sic]...

I find it nothing short of amazing that I'm actually responding to your nonsense. Who the hell taught you to read and write? Another great moment for our school systems, no doubt.

Your system IS sillier than all those other models, for one simple reason: They've done all the math. Things line up. True, no model explains everything yet, but a model has to be representative of what actually occurs in life. It can't just be a pretty word picture that doesn't pan out.

Besides, you evaded my question. What credentials do you have?
DavidD
With infinity speed becouse part of photon was given to universe and universe give this part of energy to another traveling part back with infinity speed through smallest particles, which are touching each over. And becouse frough touch information can travel with infinity speed and it's energy on smallest particles level and this energy somehow with infinity speed traveling to another part of photon. It's like you pushing somthing and it's backing back so energy of one photon part like was lost, but it don't go anythere becouse thouse particles always touching each over, and it means, that this energy come back with infinity speed to another part of photon. I think it is becouse smallest particles taking minimum space and so all 'invisible' energy and information with infinity speed traveling can travel only in some ordered way and that's becouse energy backing back to another part of photon don't matter how far it was and at which angle it rotating...
DavidD
QUOTE (LeTUOtter+Oct 25 2007, 03:13 PM)
I find it nothing short of amazing that I'm actually responding to your nonsense. Who the hell taught you to read and write? Another great moment for our school systems, no doubt.

Your system IS sillier than all those other models, for one simple reason: They've done all the math. Things line up. True, no model explains everything yet, but a model has to be representative of what actually occurs in life. It can't just be a pretty word picture that doesn't pan out.

Besides, you evaded my question. What credentials do you have?

I am not profesor, but it even for fool is clear, that many universe don't exist. Or that big bang can't be in singular point. I am trying more realistic to look at things.
DavidD
Does possible by modeling smallest particles to understand how all mater and all cosmos and universe working? If realy smallest size is Planck length (about 10^-35 m), then in 1 cm^3 can fit in about 10^100 planck smallest particles. Electron or proton size is about 10^-15. electron size is 10^-39 cm^3. So in one electron can go in 10^60 smallest particles or qubic planck lengths. Our earth consist of about 10^50 atoms. So if we want to calclulate or simulate how smallest particles creating electron still will be not enough power is one atom is size of one transistor. So then we never will understand how our universe working.
But planck length have realation only with gravity, but nobody understanding what is gravity so planck length importance is unclear.
So in my teory smallest particles then can be bigger size than planck length. For now there is know smallest photon lengths about 10^-16 m. So maybe if will be very small particle maybe it will colapse to photon. And why electron is lighter than proton, but have the same size and behave like wave, but proton don't behave like wave. So maybe smallest particles are about say 10^-20 size or maybe even bigger. If smallest particles are 10^-20 size, then 10^15 such particles can fit in into one electron size. Such particles simulation can be maybe performed on powerful computer, but since particles motions are analog then it's becoming infinity hard to simulate such sistem. And maybe also need, that smallest particles would suround this 10^15 particles, such that it wuold be possible to understand gravity and electromagnetism...

According to my teory there two forces bounce to each over and became energy motions, and this motions made big fluctations and then becoming apear many photons, electrons, protons, neutrons... This particles then become atoms, which became slowly moving from bounce center. Then atoms become stars, stars becomes galaxis and so many galaxis moving from center or maybe many stars become in diferent place of universe, enough far from each over. If not, then if possible to 100% estimate distance to some glaxis, then our universe age is about 10^14 years.
DavidD
I just assume, that to simulate those particles or need infinity precision, ecouse they motions is analog or need infinity space, if assume, that in this infinity space is noise. Then noise disturbe infinity information and becoming finity information in finity space like we now understand bits. Quantum computer can store information in infinity space, but protons and over similar particles is like finity information with noise. And so this finity information fluctating with frenquency of noise and don't leting to store infinity information in universe. This noiseles fluctation you can see as atoms-qubits fluctating with noise, like noise and inposible store information within him. If particles if more than one atom, then possible store one bit, but with this bit possible operate with finity precision, becouse noise is everythere. And if is many qubits then they noise sumates and all quantum computation going on nothing. In optical quantum computer need exponentionaly more gates so optical quantum computer is just analog computer, becouse his precision is limited by noise like in analog computer. In optical quantum computer single photon can split into thousunds and milions parts and then interfere with himself and depending on computation conditions to give one or another answer. But his computation precision is limited by beam spliter accuracy and phase shifted glass accuracy, becouse termodinamic motions in beam spliter decreasing accuracy and inperfect distance between many beam spliters and mirors also decreasing accuracy. So accuracy is very small and it's more looking like mechanical analog computer than electric analog computer. If on of photon parts is measured, then very much information, which are stored in many parts of universe like many photons parts, with speed of ligth returning to part, which are measured, but if this part not measured, then probability measure all another parts increase and information from this part going to all another parts with speed of light and then flying at all one part less, parts of photon. So on one level universe exchanging information with infinity speed and can store infinity information since cosmos is infinity and ona another level, information is all finity... But from first level only what's possible to do to second level is to make finity level with finity laws and with noisy laws. And from second level what's is possible to do to first level is to see, that on first level information can be excanged with infinity speed, but this infirmation imposible manipulate with enough good precison to get benefit from first level 'infinitnes', becouse second level is noisy.

With quantum computer in principle in superposition possible control almost infinity universe, but noise don't leting do it.
How splited parts of photon finding another part or how one part finding another parts? To solve this prblem, photon using infinity universe computation resources, but noise energy is biger and this computation becoming unsolvable. So infinity computation with noise is finity computation without noise. It you can good see in analog computer example. It having many infinity states, but noise limiting his precision to finity and number of states then is limited to some finity number of states. Similar and in quantum computer, number of infinity states and precision and computation with analog particles motions and structured minimum space of smallest particles, coused by noise, this computation becoming finity.
So quantum computer is definetly analog computer. Becouse if analog computer would have infinity precision, then it would be able to solve any problem and solve NP-complete problems. But since anlaog computer having finity precision it is just one of hypercomputers and is not faster than digital computer, but roughly we same speed.
yor_on
David, you do seem to be thinking :)
But you need to slow down your language a little.
If you want people to get your point(s).
That will give you a better response than just coming out and say that 'only i know the answer' :)
Doesn't mean that people will be friendly though, but some guys might (hopefully:) Also it gives you a chance to find out new things.
Gehn
yor_on is right. If your posts were more coherent, you would be a little more credible.

- Gehn biggrin.gif
jMuggins
QUOTE (DavidD+Oct 25 2007, 03:24 PM)
I am not profesor, but it even for fool is clear, that many universe don't exist. Or that big bang can't be in singular point. I am trying more realistic to look at things.

No you are not a professor. laugh.gif Clear fool.
DavidD
What is more coherent than statemant: "Quantum computer need many energy and it's power is limited by noise"?

My smallest balls teory have only one real concurentable teory about fluid. If smallest balls is about planck length spheres/balls, then planck length fluid can be devided into infinty many parts. And this means, that no then empty gaps like in smallest particles case. Becouse you can take any very small size and devide it into infinity many parts and never you will know from that it consist. This fluid don't have any gravitation or electromagnetism, etc. But some proportions of this fluid stroking forces creat much large particles like electrons or photons. I like more fluid teory from physical intuintive point of view and smallest particles teory I more like from computational point intuition.
Becouse, why nature must do some spheres? So what to me don't liking in smallest particles teory. But in smallest fluid teory I don't liking, that how universe can be holding on fluid it's then must be very accidental and very weak, becouse not any structure like in smallest particles case, when they trying take minimum space. And here don't need take any minimum space and it's means, that then our universe holdings on accidental fluid moving forces, those forces very dificult interact and separation light speed photons and other particles is just diferent very complex interactions of moving forces. Then our universe all laws holding almost on nothing...

Where quantum computation leading for? Into black hole ph34r.gif
DavidD
QUOTE (jMuggins+Oct 29 2007, 07:46 PM)
No you are not a professor. laugh.gif Clear fool.

I think you are sting in many dimensions perturbed by black hole field and having 1/3 brain like quarks.
jMuggins
I;m perturbed by you, black hole. mad.gif
Sapo
QUOTE (jMuggins+Oct 29 2007, 03:07 PM)
I;m perturbed by you, black hole. mad.gif

Ok! Keep on like this, clean up your grammar, and you might add to this furor, jMuggins! rolleyes.gif
jMuggins
I thought since he can't spell I shouldn't, too. Is that better? dry.gif
AlphaNumeric
Why do people continue to think that the Planck length is some kind of minimal size? It's not! It's the length at which quantum gravity is no longer ignorable, it becomes an essential requirement in any model. Hence, it's the length at which we're certain our current models of the quantum work utterly break down. Beyond it we have no working description for dynamics. No working description, doesn't mean there isn't one.

Generally, whenever someone claiming to have 'a teory about ecerything' and makes such a mistake, it just demonstrates they are complaining about the mainstream model they never bothered to actually read properly.
DavidD
jMuggins
Sapo
you
You are perturbed by each another tongue.gif

Planck lentgh isn't god, but just for fun need take some point from which is smallest particles...

Smallest particles good explaining:
how energy occure, smallest particles searching minimum space;
How superposition can be passed with infinity speed;
Why is amplitudes wavefunctions and are calcluted with cosinus, becouse smallest particles are sphere shape.
At least smallest particles teroy trying to explain how energy occure.
Bad explaining, why they have sphere shape.

Ideal liquid teory, where you can devide say one qubit meter into infinity parts, having some bad and good explanation about everything:
Bad explaining or almost not explaining, how energy occure (how motion occure);
Good explaining that nature don't have any sphere and all space is fullfilled with ideal liquid;
Bad explaining how can somthing move and howcan become move and that size must be of this move, such ,what size can be infinity small and energy from bigger size motions and smaller size motion and infinity smaller size motion have some very strange and understoodable operation, and tends to think, that it possible, that in placnk constant size can be another small universe, but all laws is the same like in our universe.
So ideal liquid teory sounds very strange and like nonsense.

More teory can't be except, that smallest particles can maybe not touching or not always be in minimum space.

Aireal
DavidD

You are on the right track, but much work needs be done. I used a simular approach in a paper I wrote. I also extended the concept to particle formation, and arrived at the correct mass for the Up and Down quarks in my model. My paper is currently being considered for publication, so I will not go into details till it is published. Rather I will not give details on a public forum like this one.

Your English skills do need improving if people are going to take you seriously. Google has a free spell checker that is very handy.

Also, I have learned over the years that forums like this are useless for developing your oun theory and presenting it to others. There are few with any real physics knowledge on these forums. Leading physicists will never be found on such forums, and thats who you need to speak with. You will find that they are more open minded and helpful than the average physicist found on such forums such as this one.

Do not worry about your credentials so much. Leading physicists will be more interested in the quality of your work than your level of formal education. Because of my paper, I have physics professors from leading universities suggesting that I apply there to finish my education, which I intend to do.

Do not waste your time on forums trying to make your point. Spend that time working on your theory and developing it to the point you can submit it for review and publication. Your time will be better spent.

Best wishes and good luck.
DavidD
I don't pretend to anything with my teory, becouse for physics need, that teory give benefit... So I know, that quantum computer is imposible with my teory or with many universe teory. It's don't need any teory to understood that quantum computer is imposible. I now wondering how scientists so many years was believing in quantum computation teory, although some scientists was doubt, but still believe... You can say me any quantum computer model and I can say you why this model is imposible. Shortly:
Optical quantum computer is imposible, becouse need exponentional number of gates and nobody doubt about this;
Magnetic nuclera resonanse (NMR) quantum computer is imposible, becouse need or exponentionaly matter or exponentionaly time or energy and about this nobody also doubt, and only in press is saying that NMR is normal quantum computer, but in real it is like optical quantum computer;
Ion traps quantum computer can't calculate with better probability than just give random answer or just give the same answer as probabilistic computer, Ion trap QC = probabilistic computer;
Superconductor quantum computer is leading QC, but imposible to increase accuracy for controling qubits, becouse qubits rotation operationis analog, but superconductor QC reach some success, becouse it is cooled near to absolute zero and for this need very much energy. But if increase number of qubits then each qubit taking quadratic space and if increase number of qubits then energy for cooling this qubits need also increase quadratic. And this very good deal with understanding, that quantum computer giving quadratic speedup over classical computer. So manufacturing qubits technology is worst or the same as tranzistors manufacturing technology and the smaller qubit the more efiecent will be quantum computer. So increase quantum computer power possible in two ways: or increase quadraticly energy, when number of qubits growing linarly, or decrease qubits size, if qubit taking say 100 nm^2 space, then need decrease to 1 nm^2 qubit size, when number of qubits growing linarly.
And for factoring quantum algorithm wouldn't be enough qubits controling precision like don't have and can't have enough precision analog computer. And factoring under some number of digits is not hard for classical computer.
Quantum simulation on quantum computer is: or unprecisly, or with 100 particles can be simulated not hard on classical computer, or quantum simulation can't give benefit, becouse it itself is noisy procese and each time diferent, depending on condition our some particles, so then need simulate and those particles, which are around.

Aireal, interesting, what model you prefer, ideal liquid or smallest particles?
Gehn
QUOTE (DavidD+Oct 30 2007, 10:27 AM)
jMuggins
Sapo
you
You are perturbed by each another tongue.gif


They're one and the same.

User posted image

- Gehn
Sapo
At your service, sir. Thanks for the beer.
user posted image = User posted image

laugh.gif
DavidD
You two are stupid, becouse believe in quantum computer tongue.gif
Sapo
QUOTE (DavidD+Oct 30 2007, 01:21 PM)
You two are stupid, becouse believe in quantum computer tongue.gif

And you edited your post to correct spelling errors, or to state another stupidity of your own? Nowhere have I said anything to anyone about "believing" in a quantum computer. Ijo de siete mecos. Bobo. Piojo baboso.
DavidD
If you wnat to understand, why quantum computer is imposible, better go learning quantum computer teory and analog computer teory.



Quantum accuracy:
4 Is Quantum Computation Digital?
http://www.cs.berkeley.edu/~vazirani/f04qu...s/lec5/lec5.pdf

http://www.tau.ac.il/~tsirel/Courses/QuantInf/lect9.pdf


Analog computer:
Noise: 0.01%
http://archive.computerhistory.org/resourc...8.102646232.pdf

Then possible number of qubits no more than 10000. With 1% noise, no more than 100 qubits.
N O M
QUOTE (DavidD+Oct 31 2007, 02:08 AM)
I don't pretend to anything with my teory, ...other pretentious pap removed...

Obviously, since you can't even spell that correctly.

Do you want anyone to try and take anything you post seriously? If you do, then use the spell-check provided. If you can't be bothered to do that, well why are you bothering to post here at all?
DavidD
"On the other hand, the precision of analog computers is not good; they are limited to three, or at most, four digits of precision."
http://en.wikipedia.org/wiki/Hybrid_computer

"With a three or four digit, highly accurate numerical seed, the total digital computation time necessary to reach the desired precision is dramatically reduced, since many fewer iterations are required. Or, for example, the analog computer might be used to solve a non-analytic differential equation problem for use at some stage of an overall computation (where precision is not very important). In any case, the hybrid computer is usually substantially faster than a digital computer, but can supply a far more precise computation than an analog computer."
"Nonlinear functions and calculations can be constructed to a limited precision (three or four digits) by designing function generators— special circuits of various combinations of capacitance, inductance, resistance, in combination with diodes (e.g., Zener diodes) to provide the nonlinearity."
"In general, analog computers are limited by real, non-ideal effects. An analog signal is composed of four basic components: DC and AC magnitudes, frequency, and phase. The real limits of range on these characteristics limit analog computers. Some of these limits include the noise floor, non-linearities, temperature coefficient, and parasitic effects within semiconductor devices, and the finite charge of an electron. Incidentally, for commercially available electronic components, ranges of these aspects of input and output signals are always figures of merit."
http://en.wikipedia.org/wiki/Analog_computers

Quantum computer is back in time to analog computer.


N O M
I am posting, what to you is to dificult to understood laugh.gif


"To their surprise, Phillips and his associate Walter Newlyn found that MONIAC could be calibrated to an accuracy of ±2 %."
http://en.wikipedia.org/wiki/MONIAC_Computer
N O M
QUOTE (DavidD+Oct 31 2007, 06:21 AM)
You two are stupid, becouse believe in quantum computer tongue.gif

Curious. Had you posted that all in capitals, we might have suspected you of being someone else
Sapo
N O M, Now now, we mustn't go like kaneda. This is obviously another one like Zephir, but I really think somebody grows these pinheads in a vat somewhere. sad.gif
N O M
QUOTE (Sapo+Oct 31 2007, 10:48 AM)
but I really think somebody grows these pinheads in a vat somewhere. sad.gif

You have a point.

DavidD. Were you purposely bred to be this stupid? or are you the end result of a schooling system designed to turn out idiots?
Sapo
Hey, now. He couldn't possibly be American! laugh.gif
N O M
QUOTE (Sapo+Oct 31 2007, 11:26 AM)
Hey, now. He couldn't possibly be American! laugh.gif

Oh! ohmy.gif I suppose I did have the "no child left behind" programme in mind when I was thinking of terrible schooling systems.
DavidD
QUOTE (N O M+Oct 30 2007, 10:31 PM)
Curious. Had you posted that all in capitals, we might have suspected you of being someone else

I don't understand what you wanna to say? There is many scientist who are sceptics about quantum computer!
Quantum computer is like analog computer. Analog computer for example can't sum up, say, 1686+1654, he will give answer not 3340, but maybe 3341, maybe 3335. Or analog computer can't precisly sum up, say, 546+564+164+646+546+181+681+649+125+313. Analog computer will give you answer not 4415, but some approximate answer: 4412 or 4418 or 4414, etc. So similar law is for qubits, the more qubit or the more computation steps, the more wrong answer would be given and if qubits or computation steps very more, then would be given 100% wrong answer.
People who working in quantum computing, nothing understand about analog computers. And analog computation is the most important case in quantum computation, becouse all operations and all operators on qubits is analog. And that's becouse no-one quantum computer model can't be practicaly realized.
DavidD
A little bit about superconductors quantum computers. How they realate with analogue computers? Simple. For analog computer you can easily inrease accuracy until noise becoming 1/1000 or 1/10000. Farther to increase accuray is imposible or exponentionaly hard. Similar to superconductor computer. To cool it in such way that it would be 99.9% or 99.99% superconductor or in another words, what he woudn't have 1/1000 - 1/10000 noise, need linear or polinomial energy and to farther to decrease noise, need exponentionaly energy like in analog computer precision increasing case.
And since qubits taking quadratic space, then to cool this quadratic space need quadratic energy. For grover algorithm to solve quantum problem per one step need quadratic more qbits than number of variables of problem. If you want solve per longer time, but not with quadratic number of qubits, but with same number of qubits, then need much more steps, what is imposible.
Anyway for quantum computer need more than 100 qubits if you want, that it would be faster than classical computer and need much steps and operations on qubits, whose are I think much more than 10 or 100 on one qubit. And since each operation on qubit increasing noise and each additional qubit increasing noise, then overall noise would reach bound of 1000/1000 - 10000/10000, and it's means, that noise would be 100%.
Why in Nature accuracy is limited to 1/1000 - 1/10000, per component or in best case 1/100000 per component, nobody know, i think, but perhaps is becouse atoms motions, termodinamics, etc.
So to quantum computer need many qubits and many steps or operations on this qubits and both those parameters decreasing accuracy of computation and increasing noise.
In my opinion quantum computer speed depending only on components size and improvement of technology of all componenets, which realate to computation on quantum computer. So for quantum computer need improving technology of components, which rotating qubits and cooling qubits, like need do improvment of components in semiconductor transistors, processors, if you want, that quantum computer would be competetive with classical computer.
In about 1950 was very popular analog computer, becouse they was faster than digital for some calculations, where don't need big precision, like diferencial and itegrations. But precision is limited, accuracy limited and they not useful now. Similar story is now. Quantum computer maybe would be faster for some aplications, but it not would be much faster than classical computer and not would be so practical like classical computer. But maybe it would be even slower than classical computer, becouse still I am doubt, does possible to increase qubits controlation precision even with exponentionaly resources? If not possible, then quantum computer would be leaved in past like now are leaved in past analog computer...
AlphaNumeric
Analogue computers do sum integers correctly. Sure, there's the occasional glitch but it's less than 1 calculation per billion.

A computer might have trouble with things like irrational numbers, since it works with rational approximations, but integers it can sum and multiply with complete accuracy.

Also, quantum computers do exist. They have been built and they work. The issue is that they haven't been made very complex. The 'proof of concept' stage is complete though.

Obviously you're another one of the nuts who likes to whine about things he has never made an attempt to understand.
DavidD
Ou, you think, you very much understand? Maybe you pass analog computer colege?
Here guys, which try build analog computer and assume, that with 3 amplifers analog computer giving more accurate answer than with 7 amplifiers:
"Once we built this circuit, we soon discovered a number of problems with it that eventually led us to minimize the design. The largest problem occurred due to the number of Op-Amps that we used. Since we used 7 Op-Amps, and four of them acted as integrators, the circuit was very susceptible to noise. When we tested each component of the circuit separately, each performed its function without too much distortion. However, when we hooked up the whole circuit, the noise became a significant problem, as it was integrated and amplified by the Op-Amps. Noise also made it difficult to find a stable wave form. The DC offset on the function generator had to be tweaked for each different wave that we used as input to the circuit in order to achieve a stable output. If the DC offset was even slightly different from the necessary value, the output would quickly go to a DC output either much greater than the desired output or zero."
http://www.owlnet.rice.edu/~elec301/Projects99/anlgcomp/

"Analogue computers do sum integers correctly. Sure, there's the occasional glitch but it's less than 1 calculation per billion."
Offcourse they do, but if integers are smaler than 1000 and number of sumations is smaller than 10! Or if integer smaller than 10 then number of sumations can't be bigger than 1000!

In many place and universities and companies 'trying' to build quantum computer, becouse it's very popular and very prestige. It's only from physics perspective interesting, how such small number of atoms can fit in such huge number of states...
Sapo
DavidD, I understand what you are saying.

Try this experiment: Take the cover from an analog television and find the boxy thing with one big fat wire coming from the top, going to the CRT...

Got that? Ok, turn on the TV and grab that wire. Make sure you have wet feet.

Let us know how that helps your project. smile.gif
DavidD
Quantum computer qubit rotation is not digital operation. To rotate 1000 qubits is the same as sum up 1000 zeros and ones with analog computer. In digital computer signal passing or not depending or is voltagte on colector or not. In digital computer transistors are made in such way, that to them need very large gap of voltage give to that they would understood it like 0 and 1. trasistors generating "0" impulse say 0.1 mV (or mA) and "1" impluse 10 mV (or mA). So they can't generate some avarge voltage and if would be error, then it would be corrected by error correction, when impuse travels more than 3 times per bit.
In quantum computer, qubit rotation is analog, but this rotation always is or from 0 to 1, or from 1 to 0, or phase shift by pi. All rotations is like digital. But they still are analog. In quantum computer if you rotate some qubit say from "0" to "1", then it is not like in transistor electric impulse go or not go. In quantum computer you must continue working on this rotated 180 degrees qubit. And after another rotation, errors would increase one more time and it's like in analog computer to sum up 1000 ones or zeros. If you with analog computer sum up say 10000 ones, then answer will be 10002 or 9996, etc. So similar in quantum computer, rotation operation noise can't be bigger than 50%. in quantum computer like in analog computer need hold this state for farther operations.
If in quantum computer after many operation on qubits, you want refresh all operations like in digital computer then all superposition would be broken and computation would be failed.
Quantum computer is like reversed neuron. If neuron taking analog signals and giving digital signal, when amplitude of all incoming signals reaching some barier, quantum computer taking analog signals and must not random give signal like neuron, but very precisly in some time and with some amplitude and this means, that analog signals coming to quantum computer must be very precisly. And if they wouldn't be precisly in time and amplitude, then error would sum up depending on each signal precision. Neurons using some correcting code, if signals coming bigger then neuron fireing more frenquently and if signals coming smaller, then neuron firing less frenquently. Quantum computer can't use such codes, becouse qubit must be in same time and with same position, amplitude like over qubits...
Quantum computer is so analog, that to some people it hard assume. It's like you need rotate ball 180 degrees one time, then another time, then thrid time and so on and the more time you rotate it, the more you understanding, that you don't know, how much you it rotating incorectly. For example your eays is denied and you don't see center of ball and on one side of ball is iron axis and on another 180 degrees side no iron axis. And if it would be digital computer then you would rotate one time and push it to you friend and your almost with 100% precision would kill you friend or not and if not then your friend taking this ball and with denied eays rotating to another friend and so on (if you kill then it is 0 and if don't then it is 1). But in quantum computer case you need rotate this ball ten or hundred times by 360 degrees and you of course after such rotations would give some middle state between axis is turned to you or to your friend and in such rotation you can injure you hands, becouse you loosing precision not only by 2D rotation, but in left or right...
DavidD
QUOTE (Sapo+Oct 31 2007, 02:15 PM)
DavidD, I understand what you are saying.

Try this experiment: Take the cover from an analog television and find the boxy thing with one big fat wire coming from the top, going to the CRT...

Got that? Ok, turn on the TV and grab that wire. Make sure you have wet feet.

Let us know how that helps your project. smile.gif

that's you talking about digital computer. Quantum computer IS NOT digital computer! The base of quantum computer is analog and since all computation on phisical level is analog. You can call, that TV signal is digital, but it is analog. Maybe digital, but quantum computer operation is analog like your CRT televisor. On each thing, on which need operate longly on one thing, then this thing is analog. And if only one operation is maded on thing, then this thing is digital. Quantum computer doing many operations on each qubit and then this analog operations sumin up of all qubits and noise also sums and bullshit going out.
Sapo
You really are completely stupid. I am 'talking about' you doing some ECT on yourself with a flyback transformer, if 20Kv could penetrate your thick hide.

Maybe you could just bang your head on a large stone....
DavidD
It's use not only AC but also DC so AC and DC cancel out each over and internet for free.
Quantum computer is analog more than you thinking. And like each analog computer can't have more than 1000-10000 qubits or components or if component or qubit one, then can't have more than 1000-10000 steps. Analog computer is obviously limited by accuracy and precision. In wikipedia nothing saying about quantum computer sceptics opinion or, that NMR quantum computer taking exponentionaly resources, when number of qubits growing linarly. Everywhere you somthing read about QC in pop-press be very carefull, becouse only half true is there.
I predicting, that quantum computer will be same speed like one processor or like supercomputer, but then it also would take energy also like supercomputer, to cool it down. And I think, that any another quantum computer model than superconductor based, imposible at all to be competetive with classical computer. Becouse NMR taking exponentionaly energy, when qubits number is linear, but he also is limited by number of qubits and can't have more than say 10-20 qubits. SO NMR is going obiously out. Optical quantum computer is very impractic, becouse it exponentionaly loosing precision. Ion trap only can be performed with error corection, but error correctio increase inaccuracy only stronger and such quantum computer wouldn't be able to have even 10-20 qubits. quantum dots quantum computer is like ion trap quantum computer and for him also need error correction and since wouldn't have more than 10-20 qubits. Becouse error corection taking precision. So need such quantum computer model, which don't need error corection. And such model is superconductor quantum computer. Every quantum computer tapys, which are with single electron or photon or proton or atom or whatever, every such qunatum computer can't have more than about 10 qubits.
So that future waiting for quantum computer? While no any other possible model except superconductor quantum computer, then future all quantum computers would be superconductor QCs. And since to cool them need special techincue, this quantum computer never would be inside computer as coprocessors for you and for me. Maybe they would be a little bit faster in some grover algorithm and quantum simulation tasks, like was analog computer in about 1950 year, but they speed wouldn't be very famous and I think they for they superconducting techinque wouldn't be used very widely, even like supercomputers. The most realistic is, that they would be only like scientist reseache and museum objects, like now are analog computers.
Sapo
I've changed my mind about this guy. It is Zephir. No one else could possibly be so hloupı. Such complete hovadina!



laugh.gif
N O M
Have you tried discussing with Bruce Voigt? I'm wondering if these two are related.
Sapo
Yes, I have. Here. But does Voigt speak Czech?
Gehn
QUOTE (DavidD+Oct 31 2007, 05:00 PM)
It's use not only AC but also DC so AC and DC cancel out each over and internet for free.

Okay... No other way to put this.

YOU ARE A RETARD. GO AWAY.
DavidD
QUOTE (Gehn+Nov 1 2007, 07:37 AM)
Okay... No other way to put this.

YOU ARE A RETARD. GO AWAY.

What you want, what I kiss you ***? mad.gif laugh.gif
I just developing my teory, and you just fluding and troling.
DavidD
"It is also possible to predict a total number of pulses needed to factor an integer of a certain size too. Because of the dependence of on A and , some ions are better than others. For example an ion of ytterbium has a transition with a lifetime of 1533 days. If we were to use ytterbium, the maximum number of bits that can be factored is 385. The number of laser pulses required to factor the integer is 30 billion. The number of ytterbium ions required to perform the computation is 1926"
http://beige.ucs.indiana.edu/M743/node17.html

Very useful information, now it is possible to know, how much approximatly operations need to do on qubits if they number is 1926.
30*10^9 / 1926 =1.5*10^7 operations/qubit. And number of qubits is 1926/358=5 times bigger than number of bits of factoring problem.
To factor not 385 bits, but 663 bits integer was needed about 2 years with 80 athlon 2.2 GHz processors. http://www.rsa.com/rsalabs/node.asp?id=2879
So it's clearly, that about 2000 qubits is equal to one athlon processor, becouse one athlon processor 385 bits (2^385 = 10^116) or 116 decimals integer can be factor in I guess also about same time (1533 days). http://www.boo.net/~jasonp/qs.html

So for 2000 qubits need about 10^10 operations. So 10^10 operations is much more than 1000-10000 stages in analog computer. Maybe analog computer doing more suboperations, but still analog computer have precision limitations and would be unable to do 10^10 operations.
s0cratus
My Teory About Ecerything.
================
THE GENESIS.
1.
T = 0K.
2.
C/D=pi , E=Mc^2, R/N=k , h = 0 , i^2=-1 .
3.
h = 1, c=1. ( light quanta).
4.
h = h /2pi , c>1.
E = hw, e^2 = hca ( electron).
The Lorentz transformations.
5.
Star formation:
e- - k - He II - He I - rotating He - thermonuclear reaction:
a) hw > kT
b) hw = kT
c) kT > hw
6.
p ( proton)
7.
Evolution of interaction:
a) electromagnetic,
b) nuclear,
c) biological.
8.
Laws:
a) The Law of conservation and transformation energy.
b) The Heisenberg Uncertainty Principle / law.
c) The Pauli Exclusion Principle/ law.
9.
Practice:
theory and work.
=============
Simple, logical,clear.
PhysOrg scientific forums are totally dedicated to science, physics, and technology. Besides topical forums such as nanotechnology, quantum physics, silicon and III-V technology, applied physics, materials, space and others, you can also join our news and publications discussions. We also provide an off-topic forum category. If you need specific help on a scientific problem or have a question related to physics or technology, visit the PhysOrg Forums. Here you’ll find experts from various fields online every day.
To quit out of "lo-fi" mode and return to the regular forums, please click here.