Phase estimation, photon cloning and the Bernoulli map

A scheme for repeated cloning of photons through laser–atom interactions is considered and shown to be the optical analog of a network for relative-phase estimation. In both cases, the dynamics of an appropriate phase is governed by the Bernoulli shift map, resulting in information loss. The analysi...

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Bibliographic Details
Published inPhysics letters. A Vol. 298; no. 1; pp. 1 - 6
Main Authors Lakshmibala, S., Satyanarayana, M.V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 27.05.2002
Subjects
Coherent states
Phase measurement
Quantum copying
Shift map
42.50.Dv
03.67.-a
42.50.-p
Phase measurement
Shift map
Quantum copying
Coherent states
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Summary:A scheme for repeated cloning of photons through laser–atom interactions is considered and shown to be the optical analog of a network for relative-phase estimation. In both cases, the dynamics of an appropriate phase is governed by the Bernoulli shift map, resulting in information loss. The analysis is generalized to include a wide class of coherent states.
ISSN:0375-9601
1873-2429
DOI:10.1016/S0375-9601(02)00177-9