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D-Wave Systems, Inc. is a quantum computing company, based in Burnaby, British Columbia, Canada. The D-Wave One was built on early prototypes such as D-Wave's Orion Quantum Computer. The prototype was a 16-qubit quantum annealing processor, demonstrated on February 13, 2007 at the Computer History Museum in Mountain View, California.〔 D-Wave demonstrated what they claimed to be a 28-qubit quantum annealing processor on November 12, 2007.〔(【引用サイトリンク】title=D-Wave Systems News )〕 The chip was fabricated at the NASA Jet Propulsion Laboratory microdevices lab in Pasadena, California.〔(【引用サイトリンク】title=A picture of the demo chip )〕 On May 11, 2011, D-Wave Systems announced D-Wave One, described as "the world's first commercially available quantum computer," operating on a 128-qubit chipset〔(M. W. Johnson et al (2011), Quantum annealing with manufactured spins (Nature) )〕 using quantum annealing (a general method for finding the global minimum of a function by a process using quantum fluctuations)〔〔〔〔 to solve optimization problems. In May 2013 it was announced that a collaboration between NASA, Google and the Universities Space Research Association (USRA) launched a Quantum Artificial Intelligence Lab based on the D-Wave Two 512-qubit quantum computer that would be used for research into machine learning, among other fields of study. On August 20, 2015, D-Wave Systems announced the general availability of the (D-Wave 2X ) system, a 1000+ qubit quantum computer. This was followed by an announcement on Sept 28, 2015 that it had been installed at the Quantum Artificial Intelligence Lab at NASA's Ames Research Center. == Technology description == In June 2010 the D-Wave processor was described as comprising a programmable〔M. W. Johnson et al., "A scalable control system for a superconducting adiabatic quantum optimization processor," (Supercond. Sci. Technol. 23, 065004 (2010) ); preprint available: (arXiv:0907.3757 )〕 superconducting integrated circuit with up to 128 pair-wise coupled〔R. Harris et al., "Compound Josephson-junction coupler for flux qubits with minimal crosstalk," (Phys. Rev. B 80, 052506 (2009) ); preprint available: (arXiv:0904.3784 )〕 superconducting flux qubits.〔R. Harris et al., "Experimental demonstration of a robust and scalable flux qubit," (Phys. Rev. B 81, 134510 (2010) ); preprint available: (arXiv:0909.4321 )〕〔Next Big Future: Robust and Scalable Flux Qubit, (), September 23, 2009〕〔Next Big Future: Dwave Systems Adiabatic Quantum Computer (), October 23, 2009〕 The 128-qubit processor was superseded by a 512-qubit processor in 2013.〔D-Wave Systems: D-Wave Two Quantum Computer Selected for New Quantum Artificial Intelligence Initiative, System to be Installed at NASA's Ames Research Center, and Operational in Q3, (), May 16, 2013〕 The processor is designed to implement a special-purpose quantum annealing as opposed to being operated as a universal gate-model quantum computer. D-Wave maintains a list of peer-reviewed technical publications by their own scientists and others on their website.〔(【引用サイトリンク】title=D-Wave Web site, list of technical publications )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「D-Wave Systems」の詳細全文を読む スポンサード リンク
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