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The quantum Zeno effect and quantum feedback in cavity QED

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dc.contributor.authorDotsenko, I
dc.contributor.authorBernu, Julien
dc.contributor.authorDeleglise, S
dc.contributor.authorSayrin, C
dc.contributor.authorBrune, M
dc.contributor.authorRaimond, J M
dc.contributor.authorHaroche, S
dc.contributor.authorMirrahimi, M
dc.contributor.authorRouchon, P
dc.coverage.spatialTurku Finland
dc.date.accessioned2015-12-13T23:00:15Z
dc.date.createdMay 23-27 2009
dc.date.issued2010
dc.date.updated2016-02-24T08:41:26Z
dc.description.abstractWe explore experimentally the fundamental projective properties of a quantum measurement and their application in the control of a system's evolution. We perform quantum non-demolition (QND) photon counting on a microwave field trapped in a very-high-Q superconducting cavity, employing circular Rydberg atoms as non-absorbing probes of light. By repeated measurement of the cavity field we demonstrated the freeze of its initially coherent evolution, illustrating the back action of the photon number measurement on the field's phase. On the contrary, by utilizing a weak QND measurement in combination with the control injection of coherent pulses, we plan to force the field to deterministically evolve towards any target photon-number state. This quantum feedback procedure will enable us to prepare and protect photon-number states against decoherence.
dc.identifier.urihttp://hdl.handle.net/1885/84034
dc.publisherIOP Publishing
dc.relation.ispartofseries16th Central European Workshop on Quantum Optics, CEWQO2009
dc.sourcePhysica Scripta
dc.subjectKeywords: Cavity field; Cavity QED; Coherent pulse; Decoherence; Microwave field; Number state; Photon counting; Photon numbers; QND measurements; Quantum feedback; Quantum measurement; Quantum non-demolition; Quantum Zeno effect; Repeated measurements; Rydberg ato
dc.titleThe quantum Zeno effect and quantum feedback in cavity QED
dc.typeConference paper
local.contributor.affiliationDotsenko, I, Universite Pierre et Marie Curie
local.contributor.affiliationBernu, Julien, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationDeleglise, S, Universite Pierre et Marie Curie
local.contributor.affiliationSayrin, C, Universite Pierre et Marie Curie
local.contributor.affiliationBrune, M, Universite Pierre et Marie Curie
local.contributor.affiliationRaimond, J M, Universite Pierre et Marie Curie
local.contributor.affiliationHaroche, S, College de France
local.contributor.affiliationMirrahimi, M, INRIA Rocquencourt
local.contributor.affiliationRouchon, P, Mines ParisTech
local.contributor.authoruidBernu, Julien, u4622407
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor020500 - OPTICAL PHYSICS
local.identifier.ariespublicationf5625xPUB12300
local.identifier.doi10.1088/0031-8949/2010/T140/014004
local.identifier.scopusID2-s2.0-78650889837
local.type.statusPublished Version

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