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Wednesday, February 24, 2021

Quantum Computer Solves Simulation

Recall our previous mentions of D-Wave Quantum Methods.

A quantum computer just solved a decades-old problem three million times faster than a classical computer   

Using a method called quantum annealing, D-Wave's researchers demonstrated that a quantum computational advantage could be achieved over classical means.

By Daphne Leprince-Ringuet | February 23, 2021 -- 15:26 GMT (07:26 PST) | Topic: Quantum Computing  ZDNet

Scientists from quantum computing company D-Wave have demonstrated that, using a method called quantum annealing, they could simulate some materials up to three million times faster than it would take with corresponding classical methods. 

Together with researchers from Google, the scientists set out to measure the speed of simulation in one of D-Wave's quantum annealing processors, and found that performance increased with both simulation size and problem difficulty, to reach a million-fold speedup over what could be achieved with a classical CPU. 

The calculation that D-Wave and Google's teams tackled is a real-world problem; in fact, it has already been resolved by the 2016 winners of the Nobel Prize in Physics, Vadim Berezinskii, J. Michael Kosterlitz and David Thouless, who studied the behavior of so-called "exotic magnetism", which occurs in quantum magnetic systems.    ... " 

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