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dc.contributor.authorFux, Gerald E.
dc.contributor.authorButler, Eoin
dc.contributor.authorEastham, Paul R.
dc.contributor.authorLovett, Brendon W.
dc.contributor.authorKeeling, Jonathan
dc.date.accessioned2021-05-22T12:30:01Z
dc.date.available2021-05-22T12:30:01Z
dc.date.issued2021-05-17
dc.identifier273982060
dc.identifier44260aae-c6ce-4626-bccb-f8737aee6dd6
dc.identifier85106552834
dc.identifier000652839000001
dc.identifier.citationFux , G E , Butler , E , Eastham , P R , Lovett , B W & Keeling , J 2021 , ' Efficient exploration of Hamiltonian parameter space for optimal control of non-Markovian open quantum systems ' , Physical Review Letters , vol. 126 , no. 20 , 200401 . https://doi.org/10.1103/PhysRevLett.126.200401en
dc.identifier.issn0031-9007
dc.identifier.otherArXiv: http://arxiv.org/abs/2101.03071v1
dc.identifier.otherORCID: /0000-0002-4283-552X/work/94291633
dc.identifier.otherORCID: /0000-0001-5142-9585/work/94291651
dc.identifier.urihttps://hdl.handle.net/10023/23230
dc.descriptionFunding: G.E.F. acknowledges support from EPSRC (EP/L015110/1). B.W.L. and J.K. acknowledge support from EPSRC (EP/T014032/1). E.B. acknowledges support from the Irish Research Council (GOIPG/2019/1871), and P.R.E. acknowledges support from Science Foundation Ireland (15/IACA/3402).en
dc.description.abstractWe present a general method to efficiently design optimal control sequences for non-Markovian open quantum systems, and illustrate it by optimizing the shape of a laser pulse to prepare a quantum dot in a specific state. The optimization of control procedures for quantum systems with strong coupling to structured environments—where time-local descriptions fail—is a computationally challenging task. We modify the numerically exact time evolving matrix product operator (TEMPO) method, such that it allows the repeated computation of the time evolution of the reduced system density matrix for various sets of control parameters at very low computational cost. This method is potentially useful for studying numerous optimal control problems, in particular in solid state quantum devices where the coupling to vibrational modes is typically strong.
dc.format.extent6
dc.format.extent492223
dc.format.extent536566
dc.language.isoeng
dc.relation.ispartofPhysical Review Lettersen
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectDASen
dc.subject.lccQCen
dc.subject.lccTKen
dc.titleEfficient exploration of Hamiltonian parameter space for optimal control of non-Markovian open quantum systemsen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Centre for Designer Quantum Materialsen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doi10.1103/PhysRevLett.126.200401
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/T014032/1en


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