On perspectives of generating quasi-Fock state via resonant self-phase-modulationстатья
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Дата последнего поиска статьи во внешних источниках: 29 апреля 2021 г.
Аннотация:Optical resonators with cubic nonlinearity were among the first simplest physical systems proposed for the generation of squeezed states of light as well as for the verification of quantum nondemolition measurement concept. These conventional squeezed states are characterized by Gaussian statistics and positive Wigner function and are frequently treated as semiclassical. In contrast, it is known that the quantum states resulting from the higher-order self-phase modulation are characterized by negative Wigner function. Such states can be transformed into an imperfect Fock state via classical biasing. Using these known features, we have developed an experimental strategy for observation and characterization of the nonclassical state in a system based on a high-Q nonlinear optical microcavity. We discuss technical limitations for the state observation associated with the losses in the system and technical noise of the classical optical sources involved in the measurement.