English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

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

MPS-Authors
/persons/resource/persons201188

Schwefel,  H. G. L.
Whispering Gallery Mode Resonator, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201126

Marquardt,  Ch.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201125

Marquardt,  F.
Marquardt Group, Associated Groups, Max Planck Institute for the Science of Light, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

PhysRevLett.115.243603.pdf
(Any fulltext), 502KB

Supplementary Material (public)

PRL2015.png
(Supplementary material), 36KB

Citation

Peano, V., Schwefel, H. G. L., Marquardt, C., & Marquardt, F. (2015). Intracavity Squeezing Can Enhance Quantum-Limited Optomechanical Position Detection through Deamplification. Physical Review Letters, 115(24): 243603. doi:10.1103/PhysRevLett.115.243603.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-633A-9
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.