Related papers: Wigner negativity in the steady-state output of a Kerr parametric oscillator

Wigner negativity in the steady-state output of a Kerr parametric oscillator

URL: http://arxiv.org/abs/2009.08168v2
Date: Fri, 14 May 2021 13:52:47 GMT
Title: Wigner negativity in the steady-state output of a Kerr parametric oscillator
Authors: Ingrid Strandberg, G\"oran Johansson, Fernando Quijandr\'ia
Abstract summary: We find that even though the steady-state cavity field is always characterized by a positive Wigner function, the output may exhibit Wigner negativity, depending on the properties of the selected mode.
Score: 62.657887071170926
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The output field from a continuously driven linear parametric oscillator may exhibit considerably more squeezing than the intracavity field. Inspired by this fact, we explore the nonclassical features of the steady-state output field of a driven nonlinear Kerr parametric oscillator using a temporal wave packet mode description. Utilizing a new numerical method, we have access to the density matrix of arbitrary wave packet modes. Remarkably, we find that even though the steady-state cavity field is always characterized by a positive Wigner function, the output may exhibit Wigner negativity, depending on the properties of the selected mode.

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