Macroscopic quantum entanglement between an optomechanical cavity and a continuous field in presence of non-Markovian noise

authored by

Su Direkci, Klemens Winkler, Corentin Gut, Klemens Hammerer, Markus Aspelmeyer, Yanbei Chen

Abstract

Probing quantum entanglement with macroscopic objects allows to test quantum mechanics in new regimes. One way to realize such behavior is to couple a macroscopic mechanical oscillator to a continuous light field via radiation pressure. In view of this, the system that is discussed comprises an optomechanical cavity driven by a coherent optical field in the unresolved sideband regime where we assume Gaussian states and dynamics. We develop a framework to quantify the amount of entanglement in the system numerically. Different from previous work, we treat non-Markovian noise and take into account both the continuous optical field and the cavity mode. We apply our framework to the case of the Advanced Laser Interferometer Gravitational-Wave Observatory (Advanced LIGO) and discuss the parameter regimes where entanglement exists, even in the presence of quantum and classical noises.

Organisation(s)

Institute of Theoretical Physics
QuantumFrontiers

External Organisation(s)

California Institute of Caltech (Caltech)
University of Vienna

Type

Article

Journal

Physical Review Research

Volume

6

ISSN

2643-1564

Publication date

16.02.2024

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Electronic version(s)

https://doi.org/10.48550/arXiv.2309.12532 (Access: Open)
https://doi.org/10.1103/PhysRevResearch.6.013175 (Access: Open)