Decoherence of adiabatically steered quantum systems

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Solinas, Paolo Möttönen, Mikko Salmilehto, J. Pekola, Jukka 2018-05-22T14:36:16Z 2018-05-22T14:36:16Z 2010-10-12
dc.identifier.citation Solinas , P , Möttönen , M , Salmilehto , J & Pekola , J 2010 , ' Decoherence of adiabatically steered quantum systems ' PHYSICAL REVIEW B , vol 82 , no. 13 , 134517 , pp. 1-12 . DOI: 10.1103/PhysRevB.82.134517 en
dc.identifier.issn 1098-0121
dc.identifier.issn 1550-235X
dc.identifier.other PURE UUID: 562c635c-d0cd-4643-93cd-812e90a85981
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
dc.identifier.other PURE FILEURL:
dc.description.abstract We study the effect of Markovian environmental noise on the dynamics of a two-level quantum system which is steered adiabatically by an external driving field. We express the master equation taking consistently into account all the contributions to the lowest nonvanishing order in the coupling to the Markovian environment. We study the master equation numerically and analytically and we find that, in the adiabatic limit, a zero-temperature environment does not affect the ground-state evolution. As a physical application, we discuss extensively how the environment affects Cooper-pair pumping. The adiabatic ground-state pumping appears to be robust against environmental noise. In fact, the relaxation due to the environment is required to avoid the accumulation of small errors from each pumping cycle. We show that neglecting the nonsecular terms in the master equation leads to unphysical results, such as charge nonconservation. We discuss also a possible way to control the environmental noise in a realistic physical setup and its influence on the pumping process. en
dc.format.extent 12
dc.format.extent 1-12
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PHYSICAL REVIEW B en
dc.relation.ispartofseries Volume 82, issue 13 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 221 Nanotechnology en
dc.subject.other 3112 Neurosciences en
dc.subject.other 214 Mechanical engineering en
dc.subject.other 218 Environmental engineering en
dc.subject.other 113 Computer and information sciences en
dc.title Decoherence of adiabatically steered quantum systems en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.subject.keyword Josephson devices
dc.subject.keyword open systems
dc.subject.keyword quantum statistical methods
dc.subject.keyword quantum systems Decoherence
dc.subject.keyword superconducting quantum interference devices
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 3112 Neurosciences
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword 218 Environmental engineering
dc.subject.keyword 113 Computer and information sciences
dc.identifier.urn URN:NBN:fi:aalto-201805222351
dc.identifier.doi 10.1103/PhysRevB.82.134517
dc.type.version publishedVersion

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