000824045 001__ 824045
000824045 005__ 20240625095034.0
000824045 0247_ $$2doi$$a10.1103/PhysRevB.93.045418
000824045 0247_ $$2ISSN$$a0163-1829
000824045 0247_ $$2ISSN$$a0556-2805
000824045 0247_ $$2ISSN$$a1094-1622
000824045 0247_ $$2ISSN$$a1095-3795
000824045 0247_ $$2ISSN$$a1098-0121
000824045 0247_ $$2ISSN$$a1550-235X
000824045 0247_ $$2ISSN$$a2469-9950
000824045 0247_ $$2ISSN$$a2469-9969
000824045 0247_ $$2Handle$$a2128/12994
000824045 0247_ $$2WOS$$aWOS:000368486600010
000824045 0247_ $$2altmetric$$aaltmetric:4426566
000824045 037__ $$aFZJ-2016-06669
000824045 082__ $$a530
000824045 1001_ $$0P:(DE-Juel1)141753$$aHell, Michael$$b0
000824045 245__ $$aQubit quantum-dot sensors: Noise cancellation by coherent backaction, initial slips, and elliptical precession
000824045 260__ $$aWoodbury, NY$$bInst.$$c2016
000824045 3367_ $$2DRIVER$$aarticle
000824045 3367_ $$2DataCite$$aOutput Types/Journal article
000824045 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1479995387_20025
000824045 3367_ $$2BibTeX$$aARTICLE
000824045 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000824045 3367_ $$00$$2EndNote$$aJournal Article
000824045 520__ $$aWe theoretically investigate the backaction of a sensor quantum dot with strong local Coulomb repulsion on the transient dynamics of a qubit that is probed capacitively. We show that the measurement backaction induced by the noise of electron cotunneling through the sensor is surprisingly mitigated by the recently identified coherent backaction [M. Hell, M. R. Wegewijs, and D. P. DiVincenzo, Phys. Rev. B 89, 195405 (2014)] arising from quantum fluctuations. This indicates that a sensor with quantized states may be switched off better than naively expected. This renormalization effect is missing in semiclassical stochastic fluctuator models and typically also in Born-Markov approaches, which try to avoid the calculation of the nonstationary, nonequilibrium state of the qubit plus sensor. Technically, we integrate out the current-carrying electrodes to obtain kinetic equations for the joint, nonequilibrium detector-qubit dynamics. We show that the sensor current response, level renormalization, cotunneling broadening, and leading non-Markovian corrections always appear together and cannot be turned off individually in an experiment or ignored theoretically. We analyze the backaction on the reduced qubit state—capturing the full non-Markovian effects imposed by the sensor quantum dot on the qubit—by applying a Liouville-space decomposition into quasistationary and rapidly decaying modes. Importantly, the sensor cannot be eliminated completely even in the simplest high-temperature, weak-measurement limit since the qubit state experiences an initial slip depending on the initial preparation of qubit plus sensor quantum dot. The slip persists over many qubit cycles, i.e., also on the time scale of the qubit decoherence induced by the backaction. A quantum-dot sensor can thus not be modeled as usual as a “black box” without accounting for its dynamical variables; it is part of the quantum circuit. We furthermore find that the Bloch vector relaxes (rate 1/T1) along an axis that is not orthogonal to the plane in which the Bloch vector dephases (rate 1/T2), blurring the notions of relaxation and dephasing times. Moreover, the precessional motion of the Bloch vector is distorted into an ellipse in the tilted dephasing plane.
000824045 536__ $$0G:(DE-HGF)POF3-144$$a144 - Controlling Collective States (POF3-144)$$cPOF3-144$$fPOF III$$x0
000824045 542__ $$2Crossref$$i2016-01-19$$uhttp://link.aps.org/licenses/aps-default-license
000824045 588__ $$aDataset connected to CrossRef
000824045 7001_ $$0P:(DE-Juel1)131026$$aWegewijs, Maarten Rolf$$b1$$eCorresponding author$$ufzj
000824045 7001_ $$0P:(DE-Juel1)143759$$aDiVincenzo, David$$b2$$ufzj
000824045 77318 $$2Crossref$$3journal-article$$a10.1103/physrevb.93.045418$$bAmerican Physical Society (APS)$$d2016-01-19$$n4$$p045418$$tPhysical Review B$$v93$$x2469-9950$$y2016
000824045 773__ $$0PERI:(DE-600)2844160-6$$a10.1103/PhysRevB.93.045418$$gVol. 93, no. 4, p. 045418$$n4$$p045418$$tPhysical review / B$$v93$$x2469-9950$$y2016
000824045 8564_ $$uhttps://juser.fz-juelich.de/record/824045/files/PhysRevB.93.045418.pdf$$yOpenAccess
000824045 8564_ $$uhttps://juser.fz-juelich.de/record/824045/files/PhysRevB.93.045418.gif?subformat=icon$$xicon$$yOpenAccess
000824045 8564_ $$uhttps://juser.fz-juelich.de/record/824045/files/PhysRevB.93.045418.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess
000824045 8564_ $$uhttps://juser.fz-juelich.de/record/824045/files/PhysRevB.93.045418.jpg?subformat=icon-180$$xicon-180$$yOpenAccess
000824045 8564_ $$uhttps://juser.fz-juelich.de/record/824045/files/PhysRevB.93.045418.jpg?subformat=icon-640$$xicon-640$$yOpenAccess
000824045 8564_ $$uhttps://juser.fz-juelich.de/record/824045/files/PhysRevB.93.045418.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000824045 909CO $$ooai:juser.fz-juelich.de:824045$$pdnbdelivery$$popenaire$$pVDB$$pdriver$$popen_access
000824045 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)141753$$aForschungszentrum Jülich$$b0$$kFZJ
000824045 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)131026$$aForschungszentrum Jülich$$b1$$kFZJ
000824045 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)143759$$aForschungszentrum Jülich$$b2$$kFZJ
000824045 9131_ $$0G:(DE-HGF)POF3-144$$1G:(DE-HGF)POF3-140$$2G:(DE-HGF)POF3-100$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Collective States$$x0
000824045 9141_ $$y2016
000824045 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000824045 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search
000824045 915__ $$0LIC:(DE-HGF)APS-112012$$2HGFVOC$$aAmerican Physical Society Transfer of Copyright Agreement
000824045 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bPHYS REV B : 2015
000824045 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000824045 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000824045 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000824045 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5
000824045 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000824045 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC
000824045 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000824045 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000824045 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000824045 920__ $$lyes
000824045 9201_ $$0I:(DE-Juel1)IAS-3-20090406$$kIAS-3$$lTheoretische Nanoelektronik$$x0
000824045 9201_ $$0I:(DE-Juel1)PGI-2-20110106$$kPGI-2$$lTheoretische Nanoelektronik$$x1
000824045 9201_ $$0I:(DE-82)080009_20140620$$kJARA-FIT$$lJARA-FIT$$x2
000824045 980__ $$ajournal
000824045 980__ $$aVDB
000824045 980__ $$aUNRESTRICTED
000824045 980__ $$aI:(DE-Juel1)IAS-3-20090406
000824045 980__ $$aI:(DE-Juel1)PGI-2-20110106
000824045 980__ $$aI:(DE-82)080009_20140620
000824045 9801_ $$aFullTexts
000824045 981__ $$aI:(DE-Juel1)PGI-2-20110106
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.74.4091
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.68.193207
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1126/science.1116955
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevA.76.042319
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nphys1856
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nphys1994
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1007/s11434-010-4321-y
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.94.196802
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.81.161308
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.91.097906
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.96.176601
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.64.165310
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.72.073303
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.69.245303
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.78.174512
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.74.045328
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.64.235307
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1126/science.280.5367.1238
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nature02693
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.2794995
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.110.046805
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.88.228304
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.72.060509
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1088/1367-2630/11/2/025002
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.94.127002
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.72.134519
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1080/00018730802218067
000824045 999C5 $$1Y. M. Galperin$$2Crossref$$oY. M. Galperin Fundamental Problems of Mesoscopic Physics 2004$$tFundamental Problems of Mesoscopic Physics$$y2004
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.57.15400
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/RevModPhys.73.357
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.77.075325
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.89.195405
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.85.4578
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.90.166602
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.70.195345
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.72.205319
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.97.166801
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.82.155408
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.77.134513
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/RevModPhys.82.1155
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.96.026805
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.74.085305
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.100.150601
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.82.155407
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1088/1742-5468/2009/01/P01048
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.81.165318
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.93.267005
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.75.165308
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.110.100405
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.102.090401
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1088/1367-2630/14/7/073023
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1140/epjd/e2015-60464-1
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevA.78.032105
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.84.235409
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.479867
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevA.28.3606
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1016/0378-4371(83)90144-9
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevA.32.2462
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1088/1367-2630/10/11/115011
000824045 999C5 $$1M. H. Devoret$$2Crossref$$oM. H. Devoret Experimental Aspects of Quantum Computing 2005$$tExperimental Aspects of Quantum Computing$$y2005
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevA.85.032110
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.90.104302
000824045 999C5 $$1H.-P. Breuer$$2Crossref$$oH.-P. Breuer The Theory of Open Quantum Systems 2002$$tThe Theory of Open Quantum Systems$$y2002
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.90.045407
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1140/epjst/e2009-00962-3
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.78.235424
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRev.188.529
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1143/PTP.55.411
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.83.115416
000824045 999C5 $$1E. Fick$$2Crossref$$9-- missing cx lookup --$$a10.1007/978-3-642-83715-9$$y1990
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1143/PTP.20.948
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1063/1.1731409
000824045 999C5 $$1M. A. Nielsen$$2Crossref$$9-- missing cx lookup --$$a10.1017/CBO9780511976667$$y2010
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1007/BF01608389
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.78.201302
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1002/pssb.200881562
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1088/1367-2630/8/1/001
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.92.178301
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1155/2010/494738
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1038/nphys2688
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.67.195320
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1147/rd.11.0019
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.82.235307
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.77.041303
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1238/Physica.Topical.102a00147
000824045 999C5 $$1H. Gutmann$$2Crossref$$oH. Gutmann Experimental Aspects of Quantum Computing 2005$$tExperimental Aspects of Quantum Computing$$y2005
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevE.66.041111
000824045 999C5 $$1D. Kribs$$2Crossref$$oD. Kribs Operator Error Correction 2013$$tOperator Error Correction$$y2013
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.85.075301
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.89.195305
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevLett.104.106801
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.88.115435
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.72.115334
000824045 999C5 $$2Crossref$$9-- missing cx lookup --$$a10.1103/PhysRevB.65.045317