Restoring Coherence Lost to a Slow Interacting Mesoscopic Bath

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dc.creatorYao, Wang
dc.creatorLiu, Ren-Bao
dc.creatorSham, L. J.
dc.date2006-04-27
dc.date2006-09-13
dc.date.accessioned2026-07-07T07:45:56Z
dc.date.available2026-07-07T07:45:56Z
dc.descriptionFor a two-state quantum object interacting with a slow mesoscopic interacting spin bath, we show that a many-body solution of the bath dynamics conditioned on the quantum-object state leads to an efficient control scheme to recover the lost quantum-object coherence through disentanglement. We demonstrate the theory with the realistic problem of one electron spin in a bath of many interacting nuclear spins in a semiconductor quantum dot. The spin language is easily generalized to a quantum object in contact with a bath of interacting multi-level quantum units with the caveat that it is mesoscopic and its dynamics is slow compared with the quantum object.
dc.descriptionRevised version, with supplementary information
dc.identifierhttps://arxiv.org/abs/cond-mat/0604634
dc.identifierhttp://arxiv.org/abs/cond-mat/0604634
dc.identifierPhys. Rev. Lett. 98, 077602 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.077602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/123668
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleRestoring Coherence Lost to a Slow Interacting Mesoscopic Bath
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