An international research team led by Professor Akira Furusawa and Deputy Director of the RIKEN Quantum Computing Center has succeeded for the first time in nonlinear measurement of an optical electric field for quantum computation. Nonlinear measurement is an essential element to enable “multiplication” in optical quantum computers, and has been a long-standing issue. This achievement corresponds to the nonlinear computation that enables general-purpose quantum computation in optical quantum computers, and is expected to lead to the realization of an error-tolerant general-purpose quantum computer.The resulting paper was published in the online scientific journal『 Nature Communications 』on July 12.
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