Limits to squeezing in the degenerate optical parametric oscillator

Chaturvedi, S., Dechoum, K. and Drummond, P. D. (2002) Limits to squeezing in the degenerate optical parametric oscillator. Physical Review A, 65 3: 033805-1-033805-15. doi:10.1103/PhysRevA.65.033805

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Author Chaturvedi, S.
Dechoum, K.
Drummond, P. D.
Title Limits to squeezing in the degenerate optical parametric oscillator
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2002-01-01
Sub-type Article (original research)
DOI 10.1103/PhysRevA.65.033805
Open Access Status File (Publisher version)
Volume 65
Issue 3
Start page 033805-1
End page 033805-15
Total pages 15
Editor B. Crasemann
Place of publication College Pk
Publisher American Physical Society
Language eng
Subject C1
240201 Theoretical Physics
780102 Physical sciences
Abstract We develop a systematic theory of quantum fluctuations in the driven optical parametric oscillator, including the region near threshold. This allows us to treat the limits imposed by nonlinearities to quantum squeezing and noise reduction in this nonequilibrium quantum phase transition. In particular, we compute the squeezing spectrum near threshold and calculate the optimum value. We find that the optimal noise reduction occurs at different driving fields, depending on the ratio of damping rates. The largest spectral noise reductions are predicted to occur with a very high-Q second-harmonic cavity. Our analytic results agree well with stochastic numerical simulations. We also compare the results obtained in the positive-P representation, as a fully quantum-mechanical calculation, with the truncated Wigner phase-space equation, also known as the semiclassical theory.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Stochastic Differential-equations
Sub-2nd Harmonic-generation
Nonequilibrium Transitions
Quantum Fluctuations
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Physical Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 40 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
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Created: Wed, 15 Aug 2007, 03:15:19 EST