All-optical coherent quantum-noise cancellation in cascaded optomechanical systems

authored by

Jakob Schweer, Daniel Steinmeyer, Klemens Hammerer, Michèle Heurs

Abstract

Coherent quantum-noise cancellation (CQNC) can be used in optomechanical sensors to surpass the standard quantum limit (SQL). In this paper, we investigate an optomechanical force sensor that uses the CQNC strategy by cascading the optomechanical system with an all-optical effective negative-mass oscillator. Specifically, we analyze matching conditions and losses and compare the two possible arrangements in which either the optomechanical or negative-mass system couples first to light. While both of these orderings yield a sub-SQL performance, we find that placing the effective negative-mass oscillator before the optomechanical sensor will always be advantageous for realistic parameters. The modular design of the cascaded scheme allows for better control of the subsystems by avoiding undesirable coupling between system components while maintaining a performance similar to the integrated configuration proposed earlier. We conclude our work with a case study of a micro-optomechanical implementation.

Organisation(s)

Institute of Gravitation Physics
Institute of Theoretical Physics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)

External Organisation(s)

Max Planck Institute for Gravitational Physics (Albert Einstein Institute)

Type

Article

Journal

Physical Review A

Volume

106

ISSN

2469-9926

Publication date

28.09.2022

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.48550/arXiv.2208.01982 (Access: Open)
https://doi.org/10.1103/PhysRevA.106.033520 (Access: Open)