Sciencist giving to you iliusion and you taking it. Smart people see that quantum computer don't exist and sciecists saying about it from moment to moment, but such persons like you more love iliusion. Facts flying everywhere around that quantum computer simulator NMR don't using entanglement - all curent "quantum computers" don't using entanglement, but dumb big weirdo still believe in entanglement and believe that maybe DavidD don't know everything and thus maybe exist some big or dumb chance that quantum computer was doen realbaly with entanglement and weirdo inspired by this pulling claim that DevidD is more dumb than he. But he is too lazy to search information and better like to live in his iliusions from optimistic press and over optimists (not sciencists).

D-Wave appears to be a company now 2008 working on QC.

http://www.dwavesys.com/index.php?page=quantum-computing

D-Wave, QC

Quantum Computing

Quantum computers (QCs) use quantum mechanics (QM), the rules that underlie the behavior of all matter and energy, to accelerate computation. It has been known for some time that once some simple features of QM are harnessed, machines will be built capable of outperforming any conceivable conventional supercomputer.

QCs are not just faster than conventional computers. They change what computer scientists call the computational scaling of many problems.

In 1936, mathematician Alan Turing published a famous paper that addressed the problem of computability. His thesis was that all computers were equivalent, and could all be simulated by each other. By extension, a problem was either computable or not, regardless of what computer it was run on. This paper led to the concept of the Universal Turing Machine, an idealized model of a computer to which all computers are equivalent.

We now know that Turing was only partially correct. Not all computers are equivalent. His work was based on an assumption — that computation and information were abstract entities, divorced from the rules of physics governing the behavior of the computer itself.

One of the most important developments in modern science is the realization that information (and computation) can never exist in the abstract. Information is always tied to the physical stuff upon which it is written. What is possible to compute is completely determined by the rules of physics.

Turing's work, and conventional computer science, are only valid if a computer obeys the rules of Newtonian physics — the set of rules that apply to large and hot things, like baseballs and humans. If elements of a computer behave according to different rules, such as the rules of QM, this assumption fails and many very interesting possibilities emerge.

As an example, consider the modeling of a nanosized structure, such as a drug molecule, using conventional (i.e., non-quantum) computers. Solving the Schrodinger Equation (SE), the fundamental description of matter at the QM level, more than doubles in difficulty for every electron in the molecule. This is called exponential scaling, and prohibits solution of the SE for systems greater than about 30 electrons. A single caffeine molecule has more than 100 electrons, making it roughly 100,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000 times harder to solve than a 30-electron system, which itself makes even high-end supercomputers choke.

This restriction makes first-principles modeling of molecular structures impossible, and has historically defined the boundary between physics (where the SE can be solved by brute force) and chemistry (where it cannot, and empirical modeling and human creativity must take over).

Quantum computers are capable of solving the SE with linear scaling exponentially faster and with exponentially less hardware than conventional computers. For a QC, the difficulty in solving the SE increases by a small, fixed amount for every electron in a system. Even very primitive QCs will be able to outperform supercomputers in simulating nature.

Even more significant, as QC technology matures, systems containing hundreds, thousands, even millions of electrons will be able to be modeled by the direct, brute force solution of the SE. This means that the fundamental equations of nature will be solvable for all nanoscale systems, with no approximations and no fudge factors. Results of these virtual reality simulations will be indistinguishable from what is seen in the real world, assuming that QM is an accurate picture of nature.

This type of simulation, by direct solution of the fundamental laws of nature, will become the backbone of engineering design in the nanotech regime where quantum mechanics reigns.

© 2008 D-Wave Systems, Inc.

[comments/rm: fast moving with the pitches, maybe slower developing, molecular quantum computing, goes on for proteins, prions made of proteins that infect, researchers have near dozens of mutations under study, forming nets of many basic parts, next to life forms at border between chemical and cellular.

Brain structures can be invaded, co-evolutionary struggle so far we are still here, drop outs not.

Best, rmuldavin

To add to the confusion, may ways to solve a compute choke.

D-Wavesys.com: Ok, you web page "legal" stated if I commented at your web sight, any comments become your property.

I think you people are locking ourselves out of the action.

Consider your statement posted above:

{{ A single caffeine molecule has more than 100 electrons, making it roughly 100,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000 times harder to solve than a 30-electron system, which itself makes even high-end supercomputers choke.}}.

That's 10 to the 18th power.

Using social grams: L(n)=n(n-1)/2

For N=100, L(100)=(100)x(99)/2 and L(30)=30x(29)/2.

The ratio, roughly of L(100)/L(30)= (100/99)/(30/29)=... wait, the electrons are moving around a 3-D structure, electrons themselves are triplet 1/3 charge vertex triangles, the molecular structure, ... better shift to powers of three for 3-D structure, so if I understand, the below report:

"Quantum Phase Extraction in Iso-spectral Electronic Nano-structures", 8 February 2008 Vol. 319, Science www.sciencemag.org

there are CO molecules on CU(111) surface, basic units are equal lateral triangle divided into two parts, an altitude separated them. , see Fig. 3.

End of page 783 states (I type this in):

{{The most basic know planar isopectrual domains (ref. 11) are nine-sided polygons previously termed "Bilby" and "Hawk" (ref 24). Each is a polyform composed of seven identical triangles and created vis a specific series of reflections, [age 784] such that every angle is the mirror image of its neighbors. Because there is proven flexibilty in choice of interior angles for the base triangle (ref 18) and the Cu(111) surface is a close-packed triangular lattice, we choose tilings based on the 30 degree, -60 degree, -90 degree triangle....}}

Not sure of what is happening, but the folding along the altitudes of the regular triangles, is a 3-fold, so lets take the 10^18 to the sixth root (2x3), then we get ten to the third to the sixth, that gives the 18 th power.

Pass on this one.

Best, rmuldavin

Protein folding and quantum simulation in some sorces is unproven fake.
Protein folds by encoded gene information (and maybe not always to "optimal" state"...).

Matchmaker, Oh Matchmaker,
make mirror match,
asymmetry may reveal,
linearly stacked threes,
memory shows motion,
strung along one-by-one
counting on something.

Media does educate,
I'd off half-baked,
complexities living make,
dependency gets rewards,
lay-down our swords,
attention to cures,
poetry will endure.

http://www.crystalmaker.com/

=======================
BaTiO3 Perovskite

Tetragonal phase: each titanium atom is bonded to six nearest-neighbour oxygen atoms, but is not exactly in the centre of an O6 octahedron. This offset means that tetragonal BaTiO3 is ferroelectric. The electrical polarisation may be reversed by applying an external electric field.

Single crystals of BaTiO3 generally contain many domains, corresponding to different directions of Ti off-centring. The net effect of the different domain orientations is to cancel out any macroscopic polarisation.
======================
Berlinite, AlPO4

Berlinite is isostructural with aluminium arsenate, AlAsO4 and gallium arsenate, GaAsO4. The structure is similar to that of quartz, but with a double "c" dimension.

Crystal structure data from Wyckoff, Crystal Structures - Vol. 3, page 31 (John Wiley, New York).
=======================
Biotite Mica, K2(Mg,Fe)6Si6Al2O20(OH)4

Biotite is an important trioctahedral (= octahedral sheets with full site occupancies) mica. It has a wider occurrence than any other mica: in metamorphic rocks, and in igneous rocks (especially granites and pegmatites).

The crystal structure of biotite consists of trioctahedral sheets (all octahedral sites filled) containing Mg and Fe, sandwiched between silicate sheets. The layers are held together by KO6 octahedra.

Crystal structure data from:

Bohlen, S.R., Peacor, D.R., and Essene, E.J. (1980) Crystal chemistry of a metamorphic biotite and its significance in water barometry. American Mineralogist, 65, 55–62.
======================
Benzene molecule inside a large channel of the zeolite ZK5 structure.

This is a straightforward example of the Place Molecule command:-

• I started with the zeolite crystal structure
• converted this to a molecule (Transform > Crystal to Molecule)
• Used the File > Place Molecule command to insert the benzene structure.
• Used the arrow tool to move the (selected) molecule into position.

(Synthetic zeolite, ZK-5, Na30 Al30 Si66 O192 . 98H2O.Crystal structure from: Wyckoff, 1960, Crystal Stuctures, Vol. 4)

[comments-rm: the author placed a benzene inside eight sided ring of tetrahedrons joined along their an edge.
=============================

[comments-rm: Above words from http://www.crystalmaker.com/
so I downloaded the software, and have check out 3-D rotations for a wide range of models: here for a poster:

Caffeine, C8H10N4O2

A caffeine molecule superimosed over a background picture (use the "Background" pane of the Model Options window to adjust background settings).
========================
[comments-rm: for Mac OS:

http://www.crystalmaker.com/

http://www.totallyhip.com/components/qssp/download/

Best, rmuldavin

[Comments]: {{Replying to Do Quantum Computer Is Possible?}}

If you take molecules of all sorts,
with the individual atoms (entangled or not),
read

INVARIANT VARIATION PROBLEMS
Emmy Noether

[circa 1918]

http://www.physics.ucla.edu/~cwp/articles/...sh/mort186.html

[comments: This is an English translation by M.A. Travel provided by the Travel and Henry M. Payner. I appears as a photo of a typed manuscript, my ibook hasn't the software to duplicate page by page the typed translation, but can do page at a time, thus giving readable multiple pages. Have not yet of how many pages photographed essay has, but reading on the way.

I type out the ABSTRACT]:

{{The problems in variation here concerned are such as to admit a continuous group (in Lie's sense); the conclusions that emerge for the corresponding differential evaluations find their most general expression in the theorems formulated in Section I and proved in the following sections. Concerning these differential equations that arise from problems of variation, far more precise statements can be made than about arbitrary differential equations admitting of a group, which are the subject of Lie's researches. What is to follow, therefore, represents a combination of the methods of the formal calculus of variations with those of Lie's group theory. For special groups and problems in variation, this combination of methods is not new; I may cite Hamel and Herglotz for special finite groups, Lorentz and his pupils (for instance Fokker), Weyl and Klein for special infinite groups. 1 Especially Klein's second Note and the present developments have been mutually influenced by each other, in which regards I may refer to the concluding remarks of Klein's Note.
}}

Reading a bit of the history first has been interesting, even how Albert Einstein gives credit to Emmy Noether for the connections to General Relativity.

I'll report back what appears to be a solid link to the polyhedra as a ring within group theory, that matches the role attributed to molecular structures.

Yes quantum computers are here, can we humans add to our thinking earth friendly robots, can we save the Species before we loose our own?

Best, rmuldavin

Best, rmuldavi