Quantum limits to all-optical phase shifts in a Kerr nonlinear medium

Sanders, Bary C. and Milburn, Gerard J. (1992) Quantum limits to all-optical phase shifts in a Kerr nonlinear medium. Physical Review a, 45 3: 1919-1923. doi:10.1103/PhysRevA.45.1919

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Author Sanders, Bary C.
Milburn, Gerard J.
Title Quantum limits to all-optical phase shifts in a Kerr nonlinear medium
Journal name Physical Review a   Check publisher's open access policy
ISSN 1050-2947
Publication date 1992-02
Sub-type Article (original research)
DOI 10.1103/PhysRevA.45.1919
Open Access Status File (Publisher version)
Volume 45
Issue 3
Start page 1919
End page 1923
Total pages 5
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract We consider two copropagating fields in a nonlinear Kerr medium, each with a particular phase and intensity. The Kerr medium possesses an intensity-dependent refractive index and the phase shift of each field thus depends on the intensities of the fields. Classically it is possible to induce an arbitrary phase shift of one field (the signal field) by either increasing the intensity of the other field (the control field) or by increasing the interaction legnth. We show that if the intensity of the control field is low, the phase shift on the signal is limited by the discrete nature of the photon-number distribution in the control field and cannot be increased simply by increasing the interaction length. In general the maximum phase shift of the signal field is φ if the control field possesses φ photons. This limit arises as a consequence of quantum recurrence effects.
Keyword Classical Liouville Dynamics
Nondemolition Measurements
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 50 times in Thomson Reuters Web of Science Article | Citations
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