All-optical coherent quantum-noise cancellation in cascaded optomechanical systems
arXiv:2208.01982 · doi:10.1103/PhysRevA.106.033520
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, losses and compare the two possible arrangements in which either the optomechanical or the 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 sub-systems by avoiding undesirable coupling between system components, while maintaining similar performance to the integrated configuration proposed earlier. We conclude our work with a case study of a micro-optomechanical implementation.
9 pages, 6 figures, Appendix A and B
References in corpus (7)
- Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency
- Establishing EPR-channels between Nanomechanics and Atomic Ensembles
- Evading quantum mechanics
- Observation of back-action cancellation in interferometric and weak force measurements
- Advanced quantum techniques for future gravitational-wave detectors
- Coherent Cancellation of Backaction Noise in optomechanical Force Measurements
- Trajectories without quantum uncertainties