[cryptography] D-Wave Sells First Quantum Computer
lodewijk andré de la porte
lodewijkadlp at gmail.com
Fri May 27 06:14:37 EDT 2011
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?
> *quantum annealing* (QA) is a general method for finding the global
> minimum <http://en.wikipedia.org/wiki/Global_minimum> of a given *objective
> function <http://en.wikipedia.org/wiki/Objective_function>* over a given
> set of *candidate solutions* (the *search space*), by a process analogous
> to quantum fluctuations <http://en.wikipedia.org/wiki/Quantum_fluctuation>
Which makes it quite usable, to my suprise.
In 30 years I'll have one at home. Not to worry.
2011/5/27 James A. Donald <jamesd at 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.
>> 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.
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> cryptography at randombit.net
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