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arXiv · 2006.16985

Production and applications of non-Gaussian quantum states of light

A. I. Lvovsky·Philippe Grangier·Alexei Ourjoumtsev·Valentina Parigi·Masahide Sasaki·Rosa Tualle-Brouri
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Abstract

This review covers recent theoretical and experimental efforts to extend the application of the continuous-variable quantum technology of light beyond "Gaussian" quantum states, such as coherent and squeezed states, into the domain of "non-Gaussian" states with negative Wigner functions. Starting with basic Gaussian nonclassicality associated with single- and two-mode vacuum states produced by means of parametric down-conversion and applying a set of standard tools, such as linear interferometry, coherent state injection, and conditional homodyne and photon number measurements, one can implement a large variety of optical states and processes that are relevant in fundamental quantum physics as well as quantum optical information processing. We present a systematic review of these methods, paying attention to both fundamental and practical aspects of their implementation, as well as a comprehensive overview of the results achieved therewith.

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A. I. Lvovsky, Philippe Grangier, Alexei Ourjoumtsev, Valentina Parigi, Masahide Sasaki, Rosa Tualle-Brouri. 2020-06-30. Production and applications of non-Gaussian quantum states of light. https://arxiv.org/abs/2006.16985

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