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research article

Quantum-Limited Measurements Using an Optical Cavity with Modulated Intrinsic Loss

Tagantsev, Alexander K.  
•
Fedorov, Sergey A.  
July 23, 2019
Physical Review Letters

We analyze a cavity optomechanical setup, in which the position of an oscillator modulates the internal optical loss. We show that, in contrast to systems with a fixed internal loss, in such a setup, quantum-limited position measurements can be performed and formulate conditions under which it is possible. Additionally, under these conditions the setup exhibits a number of potential benefits for practical operation, including the complete absence of dynamical backaction and optomechanical instability, rejection of classical laser noise, and thermal fluctuations of cavity frequency from the measurement record. We address a few potential experimental implementations of this setup.

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Type
research article
DOI
10.1103/PhysRevLett.123.043602
Web of Science ID

WOS:000477918500004

Author(s)
Tagantsev, Alexander K.  
•
Fedorov, Sergey A.  
Date Issued

2019-07-23

Publisher

AMER PHYSICAL SOC

Published in
Physical Review Letters
Volume

123

Issue

4

Article Number

043602

Subjects

Physics, Multidisciplinary

•

Physics

•

fluctuations

•

noise

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LC  
CIME  
LPQM  
Available on Infoscience
August 13, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/159713
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