D-Wave claims to have built its largest-ever quantum chip
DOI: 10.1063/PT.5.0210135
The Verge : Quantum computing company D-Wave Systems has announced its development of a chip containing 2000 qubits, double the capacity of earlier versions. Not only is it bigger, says Colin Williams, D-Wave’s director of business development, it is also “improved in many other ways.” Although D-Wave has said that its quantum computing system is much faster than conventional computers, that claim has not been definitively proved, according to a 2014 study in Science by Matthias Troyer of ETH Zürich and his colleagues. Troyer says there is no evidence that increasing the number of qubits will make a difference. He adds that there are other promising quantum computing projects in the works by such companies as Microsoft and IBM.