Unambiguous discrimination of nonorthogonal quantum states in cavity QED

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dc.creatorAssis, Rogério Jorge de
dc.creatorSales, José de Souza
dc.creatorAlmeida, Norton Gomes de
dc.date.accessioned2024-03-19T13:25:03Z
dc.date.available2024-03-19T13:25:03Z
dc.date.issued2017
dc.description.abstractWe propose an oversimplified scheme to unambiguously discriminate nonorthogonal quantum field states inside high-Q cavities. Our scheme, which is based on positive operator-valued measures (POVM) technique, uses a single three-level atom interacting resonantly with a single mode of a cavity-field and selective atomic state detectors. While the single three-level atom takes the role of the ancilla, the single cavity mode field represents the system we want to obtain information. The efficiency of our proposal is analyzed considering the nowadays achievements in the context of cavity QED. We also analyze the effect of a thermal environment to discrimination of nonorthogonal states.
dc.identifier.citationASSIS, R. J. de; SALES, J. S.; ALMEIDA, N. G. de. Unambiguous discrimination of nonorthogonal quantum states in cavity QED. Physics Letters A, Amsterdam, v. 381, p. 2927-2933, 2017. DOI: 10.1016/j.physleta.2017.07.017. Disponível em: https://www.sciencedirect.com/science/article/pii/S0375960117306667. Acesso em: 18 mar. 2024.
dc.identifier.doi10.1016/j.physleta.2017.07.017
dc.identifier.issn0375-9601
dc.identifier.issne- 1873-2429
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0375960117306667
dc.language.isoeng
dc.publisher.countryHolanda
dc.rightsAcesso Restrito
dc.subjectPOVM
dc.subjectGeneralized measurements
dc.subjectCavity QED
dc.titleUnambiguous discrimination of nonorthogonal quantum states in cavity QED
dc.typeArtigo

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