Wigner negativity in the steady-state output of a Kerr parametric oscillator
Journal article, 2021

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.

Author

Ingrid Strandberg

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Göran Johansson

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Isaac Fernando Quijandria Diaz

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Physical Review Research

26431564 (ISSN)

Vol. 3 2 023041

Areas of Advance

Nanoscience and Nanotechnology

Subject Categories

Other Physics Topics

DOI

10.1103/PhysRevResearch.3.023041

More information

Latest update

4/21/2023