This explaination is the first that really makes sense. Thanks. (although there is future in quantum computing as in bits with >2 possible values. This is not a "general computing" quantum computer.)
2011/5/28 Mark Avrum Gubrud <gub...@umd.edu> > Lockheed will use the D-Wave device to conduct further "research" on > contract to the USG (DoD, DHS, IC) under classification (D-wave is I believe > a Canadian company) which will serve to further cover up its uselessness. > They may also use it to spice up marketing for their security services, > since D-Wave is claiming they can use it to generate "software" for image > recognition. Lockheed can then say they make use of 'advanced quantum > computing, an industry first, to generate algorithms for target > recognition.' That should certainly help do the trick when the customers > are military, government and corporate bureaucrats and politicians. > > ----- Forwarded message from Jean-Philippe Aumasson < > jeanphilippe.aumas...@gmail.com> ----- > > From: Jean-Philippe Aumasson <jeanphilippe.aumas...@gmail.com> > Date: Fri, 27 May 2011 12:24:24 +0200 > To: Crypto discussion list <cryptography@randombit.net> > Subject: Re: [cryptography] D-Wave Sells First Quantum Computer > Reply-To: Crypto discussion list <cryptography@randombit.net> > > Scott Aaronson's take on D-wave quantum computer and recent Nature paper: > > http://blogs.forbes.com/alexknapp/2011/05/24/q-and-a-with-prof-scott-aaronson-on-d-waves-quantum-computer/ > > Excerpts: > > "they?re not claiming a ?quantum speedup? ? i.e., to solve some actual > computational problem faster using quantum coherence. They?re just > claiming an observation of the sorts of quantum effects that would be > a prerequisite to such a speedup" > > "researchers have constructed special examples of optimization > problems where quantum annealing reaches the global optimum > exponentially faster than classical simulated annealing. But on the > other hand, they?ve constructed other examples where quantum annealing > is just as slow as classical simulated annealing, both of them getting > trapped in local optima!" > > "any claims by D-Wave that the practical value of quantum annealing > has already been demonstrated need to be taken with a huge grain of > salt" > > > > > 2011/5/27 lodewijk andr? de la porte <lodewijka...@gmail.com>: > > Any word on the kind of processing power this thing is? It really does > sound > > like the future, with it's supercooled processor 'n all. They state the > > price is "consistent with large-scal,high-performance computing systems" > > whatever that means, could it possibly be worthwhile? > > From wikipedia: > >> > >> quantum annealing?(QA) is a general method for finding the?global > >> minimum?of a given?objective function?over a given set of?candidate > >> solutions?(the?search space), by a process analogous to?quantum > >> fluctuations. > > > > Which makes it quite usable, to my suprise. > > In 30 years I'll have one at home. Not to worry. > > Best regards, > > Lodewijk > > > > 2011/5/27 James A. Donald <jam...@echeque.com> > >> > >> On 2011-05-27 4:28 PM, Danilo Gligoroski wrote: > >>> > >>> I am among skeptics that quantum computers will break RSA1024 or > ECDSA160 > >>> in the next 35 years, but maybe I have to revise my views. > >>> > >>> > >>> > http://www.hpcwire.com/hpcwire/2011-05-26/d-wave_sells_first_quantum_computer.html > >>> > >>> > >>> On Wednesday, D-Wave Systems made history by announcing the sale of the > >>> world's first commercial quantum computer. The buyer was Lockheed > Martin > >>> Corporation, who will use the machine to help solve some of their "most > >>> challenging computation problems." ... > >>> > >>> ... D-Wave One uses a superconducting 128-qubit (quantum bit) chip, > >>> called Rainier, representing the first commercial implementation of a > >>> quantum processor. An early prototype, a 16-qubit system called Orion, > was > >>> demonstrated in February 2007. At the time, D-Wave was talking about > future > >>> systems based on 512-qubit and 1024-qubit technology, but the 128-qubit > >>> Rainier turned out to be the company's first foray into the commercial > >>> market. ... > >> > >> 128 quantum bits sounds like a lot, but it is less than it seems, > because > >> this is not a general purpose quantum computer, though it can emmulate a > >> general purpose quantum computer with considerably fewer quantum bits. > >> > >> _______________________________________________ > >> cryptography mailing list > >> cryptography@randombit.net > >> http://lists.randombit.net/mailman/listinfo/cryptography > > > > > > _______________________________________________ > > cryptography mailing list > > cryptography@randombit.net > > http://lists.randombit.net/mailman/listinfo/cryptography > > > > > _______________________________________________ > cryptography mailing list > cryptography@randombit.net > http://lists.randombit.net/mailman/listinfo/cryptography > > ----- End forwarded message ----- > -- > Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org > ______________________________________________________________ > ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org > 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE > >
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