{"article":{"id":300652,"heading":"Russian physicists mix classical light with half a photon on a qubit","author":"ano","created":"2021-09-17 12:43:44","modified":"2021-09-17 12:43:44","last_modified":"Fri, 17 Sep 2021 19:43:44","article":"

A Russian-U.K. research team has proposed a theoretical description for the new effect of quantum wave mixing involving classical and nonclassical states of microwave radiation. This effect, which previously lacked a rigorous mathematical description, could be of use to quantum computer scientists and fundamental physicists probing light-matter interactions. The study came out in Physical Review A.

\"We have formulated a mathematical language for handling the unconventional and intriguing phenomenon of wave mixing of classical light - coherent electromagnetic radiation - and rather exotic forms of nonclassical light, in particular, squeezed light and a superposition of one photon and zero photons, which effectively contains 'one half of a photon,' if you will. The study builds on our prior work, where we first designed a single-photon microwave source and then used it to create a quantum superposition between one and zero photons in a pulse, producing in effect a half-photon state,\" explains the study's PI Oleg Astafiev, of Skoltech, MIPT, the University of London, and U.K.'s National Physical Laboratory.

https:\/\/www.spacedaily.com\/reports\/Russian_physicists_mix_classical_light_with_half_a_photon_on_a_qubit_999.html<\/a>

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