Google conducts speed test of quantum computer "D-Wave Two"

It is said that there is a possibility that it can greatly exceed the performance of the conventional computer processor, and the voice expected to be the next generation computer also has a high technologyQuantum computeris. Google alsoD-WaveCompany's quantum computer "D-Wave TwoAlthough participating in the development of the performance test of D-Wave Two which was carried out the other day, it became clear that the result of the performance test of the other day was almost the same as the conventional general PC.

Google's quantum computer flunks landmark speed test - tech - 15 January 2014 - New Scientist
http://www.newscientist.com/article/dn24882-googles-quantum-computer-flunks-landmark-speed-test.html#.UtiBCrTp-y8

D-Wave Two and regular PC were used for the performance test, and the comparison optimization algorithm was run for both comparisons. As a result, the D - Wave Two system could not make use of the advantages of quantum computing technology, and could only produce results that were not much different from the usual computers. However, this is a test in a limited number of fields, and it is also true that some experts believe that D - Wave is developing.

A quantum computer is an operation system that uses the principle of quantum mechanics for the brain part, and it is not a combination of the conventional "0 and 1", but a processing by a quantum bit using the property of quantum "can be 0 and 1 at the same time" It is a mechanism to do. It is thought that it is possible to perform parallel processing on a scale impossible with conventional processors and it is possible to perform prime factorization and huge database searching at a speed that is far from comparable with the past. However, the quantum computer created at the laboratory level at the present stage is "it is a small quantum bit and succeeds in running at a limited computing speed".

Despite that state, Google purchased a Canadian-based D-wave company's system and established its "adiabatic quantum computer" system, D-Wave Two, at NASA Ames Research Center. Nonetheless, the fact that this system was actually used is that it only creates algorithms to detect eyelid blinks on Google Glass.


In response to this result, Google has been focusing on grasping the limits of quantum computing, understanding what is necessary for performance improvement and making it useful for future designs, and in the future We are going to do a lot of tests. Despite being a developing technology, NASA is developing the D - Wave company 's system and seeing its use in astrophysics, including exploration of extrasolar planets. Space telescope "KeplerAlthough it takes a huge amount of time to analyze the data obtained by the quantum computer, quantum computers are expected to greatly shorten this.

In order to improve the performance of quantum computing in the future, D - wave Corporation is planning to improve the chip, which is about 500 qubits, to about 1000 qubits, which is twice as high as the present.


However, there are many negative opinions on quantum computer technology,Massachusetts Institute of Technology(MIT)Scott AaronsonAssociate professor says "We can not think that the present problem will be solved at 1000 quantum bits" and the opinion that co-founder of D-wave company is now far away from work Loughborough UniversityAlexandre ZagoskinProfessor of Physics said, "First of all, it is the focus to confirm whether the quantum computer operates as expected, and the speed is OK after that" is also coming out. New technologies have various failures and twists and turns, but how long will it take to put the quantum computer technology into practical use?

The D-Wave Two system
http://www.dwavesys.com/en/products-services.html