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dc.date.accessioned2014-10-30T10:48:43Z
dc.date.available2014-10-30T10:48:43Z
dc.date.issued2014
dc.identifier.issn1367-2630
dc.identifier.uriurn:nbn:de:hebis:34-2014103046201
dc.identifier.urihttp://hdl.handle.net/123456789/2014103046201
dc.description.sponsorshipGefördert durch den Publikationsfonds der Universität Kassel
dc.subjectquantum dissipative systemseng
dc.subjectentanglement creationeng
dc.subjectoptimal control theoryeng
dc.subject.ddc530
dc.titleOptimal control theory for a unitary operation under dissipative evolutioneng
dc.typeAufsatz
dcterms.abstractWe show that optimizing a quantum gate for an open quantum system requires the time evolution of only three states irrespective of the dimension of Hilbert space. This represents a significant reduction in computational resources compared to the complete basis of Liouville space that is commonly believed necessary for this task. The reduction is based on two observations: the target is not a general dynamical map but a unitary operation; and the time evolution of two properly chosen states is sufficient to distinguish any two unitaries. We illustrate gate optimization employing a reduced set of states for a controlled phasegate with trapped atoms as qubit carriers and a iSWAP gate with superconducting qubits.ger
dcterms.accessRightsopen access
dcterms.bibliographicCitationIn: New journal of physics. - London : IOP, 2014, 16, 055012 , 1-28
dcterms.creatorGoerz, Michael H.
dcterms.creatorReich, Daniel M.
dcterms.creatorKoch, Christiane P.
dc.relation.doidoi:10.1088/1367-2630/16/5/055012


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