Optimal control theory for a unitary operation under dissipative evolution
| dc.date.accessioned | 2014-10-30T10:48:43Z | |
| dc.date.available | 2014-10-30T10:48:43Z | |
| dc.date.issued | 2014 | |
| dc.identifier.issn | 1367-2630 | |
| dc.identifier.uri | urn:nbn:de:hebis:34-2014103046201 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/2014103046201 | |
| dc.description.sponsorship | Gefördert durch den Publikationsfonds der Universität Kassel | |
| dc.rights | Urheberrechtlich geschützt | |
| dc.rights.uri | https://rightsstatements.org/page/InC/1.0/ | |
| dc.subject | quantum dissipative systems | eng |
| dc.subject | entanglement creation | eng |
| dc.subject | optimal control theory | eng |
| dc.subject.ddc | 530 | |
| dc.title | Optimal control theory for a unitary operation under dissipative evolution | eng |
| dc.type | Aufsatz | |
| dcterms.abstract | We 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.accessRights | open access | |
| dcterms.bibliographicCitation | In: New journal of physics. - London : IOP, 2014, 16, 055012 , 1-28 | |
| dcterms.creator | Goerz, Michael H. | |
| dcterms.creator | Reich, Daniel M. | |
| dcterms.creator | Koch, Christiane P. | |
| dc.relation.doi | doi:10.1088/1367-2630/16/5/055012 |
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