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Protecting atomic coherent spin states with weak measurements and feedback

hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorVANDERBRUGGEN, Thomas
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorKOHLHAAS, Ralf
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorBERTOLDI, Andrea
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorBERNON, Simon
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorASPECT, Alain
hal.structure.identifierSystèmes de Référence Temps Espace [SYRTE]
dc.contributor.authorLANDRAGIN, Arnaud
hal.structure.identifierlp2n-02,lp2n-11
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorBOUYER, Philippe
dc.date.accessioned2023-05-12T10:25:53Z
dc.date.available2023-05-12T10:25:53Z
dc.date.created2012-07-13
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181255
dc.description.abstractEnWeak measurements provide new ways to observe and control quantum systems. Here we use weak non-destructive measurements in a feedback scheme to protect an atomic ensemble in a coherent superposition against a simple decoherence model. The feedback efficiency, defined as the ability to recover the coherence of the initial state, is studied versus the number of photons in the probe beam. This allows us to precisely characterize the trade-off between information retrieval and destructivity. The lifetime of the coherent spin state is increased by one order of magnitude when the correction cycle is iterated.
dc.language.isoen
dc.title.enProtecting atomic coherent spin states with weak measurements and feedback
dc.typeDocument de travail - Pré-publication
dc.subject.halPhysique [physics]/Physique Quantique [quant-ph]
dc.subject.halPhysique [physics]/Physique [physics]/Physique Atomique [physics.atom-ph]
dc.identifier.arxiv1207.3203
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
hal.identifierhal-00718105
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00718105v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=VANDERBRUGGEN,%20Thomas&KOHLHAAS,%20Ralf&BERTOLDI,%20Andrea&BERNON,%20Simon&ASPECT,%20Alain&rft.genre=preprint


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