Squeezing and Feedback

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Title Squeezing and Feedback
Author Wiseman, Howard Mark
Book Title Quantum Squeezing
Editor P.D. Drummond, Z. Ficek
Year Published 2004
Place of publication Berlin
Publisher Springer
Abstract Electro-optical feedback has many features in common with optical nonlinearities and hence is relevant to the generation of squeezing. First, I discuss theoretical and experimental results for traveling-wave feedback, emphasizing how the ``in-loop'' squeezing (also known as ``squashing'') differs from free squeezing. Although such feedback, based on ordinary (demolition) photodetection cannot create free squeezing, it can be used to manipulate it. Then I treat feedback based on nonlinear quantum optical measurements (of which non-demolition measurements are one example). These {\em are} able to produce free squeezing, as shown in a number of experiments. Following that I discuss theories showing that intracavity squeezing can be increased using ordinary feedback, and produced using QND-based feedback. Finally, I return to ``squashed'' fields and present recent results showing that the reduced in-loop fluctuations can suppress atomic decay in a manner analogous to the effect for squeezed fields.
Peer Reviewed Yes
Published Yes
Publisher URI http://dx.doi.org/10.1007/978-3-662-09645-1
Alternative URI http://dx.doi.org/10.1007/978-3-662-09645-1_6
Copyright Statement Copyright 2004 Springer. This is the author-manuscript version of this paper. It is reproduced here in accordance with the copyright policy of the publisher. Please refer to the publisher’s website for further information.
Chapter Number 6
Page from 171
Page to 223
ISBN 3540659897
Date Accessioned 2005-03-08
Date Available 2015-02-10T04:40:15Z
Language en_US
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science
Subject PRE2009-Quantum Optics and Lasers
URI http://hdl.handle.net/10072/519
Publication Type Book Chapters
Publication Type Code b1

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