Adaptive Phase estimation is more accurate than nonadaptive phase estimation for continuous beams of light

Pope, D. T., Wiseman, H. M. and Langford, N. K. (2004) Adaptive Phase estimation is more accurate than nonadaptive phase estimation for continuous beams of light. Physical Review A, A70 043812: 043812-1-043812-13. doi:10.1103/PhysRevA.70.043812

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ72661.pdf Full text (open access) application/pdf 147.93KB 4

Author Pope, D. T.
Wiseman, H. M.
Langford, N. K.
Title Adaptive Phase estimation is more accurate than nonadaptive phase estimation for continuous beams of light
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2004
Sub-type Article (original research)
DOI 10.1103/PhysRevA.70.043812
Open Access Status File (Publisher version)
Volume A70
Issue 043812
Start page 043812-1
End page 043812-13
Total pages 13
Editor B. Crasemann
Place of publication United States
Publisher Americal Physical Society
Collection year 2004
Language eng
Subject C1
780102 Physical sciences
240402 Quantum Optics and Lasers
Abstract We consider the task of estimating the randomly fluctuating phase of a continuous-wave beam of light. Using the theory of quantum parameter estimation, we show that this can be done more accurately when feedback is used (adaptive phase estimation) than by any scheme not involving feedback (nonadaptive phase estimation) in which the beam is measured as it arrives at the detector. Such schemes not involving feedback include all those based on heterodyne detection or instantaneous canonical phase measurements. We also demonstrate that the superior accuracy of adaptive phase estimation is present in a regime conducive to observing it experimentally.
Keyword Optics
Physics, Atomic, Molecular & Chemical
2-photon Coherent States
Optical Communication
Quantum Measurements
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2005 Higher Education Research Data Collection
School of Physical Sciences Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 14 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 15 Aug 2007, 04:17:31 EST