Gaussian-state description of squeezed light

Vivi Petersen, Lars Bojer Madsen, and Klaus Mølmer
Phys. Rev. A 72, 053812 – Published 17 November 2005

Abstract

We present a Gaussian-state description of squeezed light generated in an optical parametric oscillator. Using the Gaussian-state description we describe the dynamics of the system conditioned on homodyne detection on the output field. Our theory shows that the output field is squeezed only if observed for long enough times or by a detector with finite bandwidth. As an application of the present approach we consider the use of finite bandwidth squeezed light together with a sample of spin-polarized atoms to estimate a magnetic field.

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  • Received 26 May 2005

DOI:https://doi.org/10.1103/PhysRevA.72.053812

©2005 American Physical Society

Authors & Affiliations

Vivi Petersen1,2, Lars Bojer Madsen2, and Klaus Mølmer1,2

  • 1QUANTOP-Danish National Research Foundation Center for Quantum Optics, University of Aarhus, DK-8000 Århus C, Denmark
  • 2Department of Physics and Astronomy, University of Aarhus, DK-8000 Århus C, Denmark

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Issue

Vol. 72, Iss. 5 — November 2005

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