Activated and non-activated dephasing in a spin bath

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dc.contributor.author Torrontegui Muñoz, Erik
dc.contributor.author Kosloff, Ronnie
dc.date.accessioned 2021-03-15T09:12:46Z
dc.date.available 2021-03-15T09:12:46Z
dc.date.issued 2016-09-02
dc.identifier.bibliographicCitation Torrontegui, E. y Kosloff, R. (2016). Activated and non-activated dephasing in a spin bath. New Journal of Physics, 18(9), 093001.
dc.identifier.issn 1367-2630
dc.identifier.uri http://hdl.handle.net/10016/32131
dc.description.abstract We analyze different decoherence processes in a system coupled to a bath. Apart from the well known standard dephasing mechanism which is temperature dependent an alternative mechanism is presented, the spin-swap dephasing which does not need initial bath activation and is temperature independent. We show that for dipole interaction in the weak coupling regime the separation of time scales between system and bath can not produce pure dephasing, the process being accompanied by dissipation. Activated and non-activated dephasing processes are analyzed in a diamond nitrogen-vacancy center.
dc.description.sponsorship We thank D Gelman, A Levy, and C P Koch for fruitful discussions. We acknowledge funding by the Israel Science Foundation, the Basque Government (Grant No. IT472-10), Ministerio de Economía y Competitividad (FIS2015-67161-P), the program UFI 11/55 of UPV/EHU, and COST Action MP1209 'Thermodynamics in the quantum regime'. ET is supported by the Basque Government postdoctoral program.
dc.format.extent 14
dc.language.iso eng
dc.publisher IOP Science
dc.rights © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
dc.rights Atribución 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by/3.0/es/
dc.subject.other Decoherence
dc.subject.other Open quantum systems
dc.subject.other Dephasing
dc.title Activated and non-activated dephasing in a spin bath
dc.type article
dc.subject.eciencia Física
dc.identifier.doi http://dx.doi.org/10.1088/1367-2630/18/9/093001
dc.rights.accessRights openAccess
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 9
dc.identifier.publicationlastpage 14
dc.identifier.publicationtitle New Journal of Physics
dc.identifier.publicationvolume 18
dc.identifier.uxxi AR/0000026555
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