Intracavity Squeezing Can Enhance Quantum-Limited Optomechanical Position Detection through Deamplification

Peano V, Schwefel H, Marquardt C, Marquardt F (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Physical Review Letters American Physical Society

Book Volume: 115

Article Number: 243603

Journal Issue: 24

DOI: 10.1103/PhysRevLett.115.243603

Abstract

It has been predicted and experimentally demonstrated that by injecting squeezed light into an optomechanical device, it is possible to enhance the precision of a position measurement. Here, we present a fundamentally different approach where the squeezing is created directly inside the cavity by a nonlinear medium. Counterintuitively, the enhancement of the signal-to-noise ratio works by deamplifying precisely the quadrature that is sensitive to the mechanical motion without losing quantum information. This enhancement works for systems with a weak optomechanical coupling and/or strong mechanical damping. This can allow for larger mechanical bandwidth of quantum-limited detectors based on optomechanical devices. Our approach can be straightforwardly extended to quantum nondemolition qubit detection.

Authors with CRIS profile

Vittorio Peano Cavasola Institut für Theoretische Physik Harald Schwefel Naturwissenschaftliche Fakultät Christoph Marquardt Lehrstuhl für Experimentalphysik (Optik) Florian Marquardt Lehrstuhl für Theoretische Physik

How to cite

APA:

Peano, V., Schwefel, H., Marquardt, C., & Marquardt, F. (2015). Intracavity Squeezing Can Enhance Quantum-Limited Optomechanical Position Detection through Deamplification. Physical Review Letters, 115(24). https://doi.org/10.1103/PhysRevLett.115.243603

MLA:

Peano, Vittorio, et al. "Intracavity Squeezing Can Enhance Quantum-Limited Optomechanical Position Detection through Deamplification." Physical Review Letters 115.24 (2015).

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