{"id":885,"date":"2010-02-15T16:55:50","date_gmt":"2010-02-15T14:55:50","guid":{"rendered":"https:\/\/webs.uab.cat\/giq\/seminar\/quantum-discrimination-gaussian-channels-and-technological-applications\/"},"modified":"2010-02-15T16:55:50","modified_gmt":"2010-02-15T14:55:50","slug":"quantum-discrimination-gaussian-channels-and-technological-applications","status":"publish","type":"seminar","link":"https:\/\/webs.uab.cat\/giq\/seminar\/quantum-discrimination-gaussian-channels-and-technological-applications\/","title":{"rendered":"Quantum discrimination of Gaussian channels and technological applications"},"content":{"rendered":"<p>The optimal discrimination of two Gaussian channels is a central problem in quantum information theory. In this talk we discuss how the use of quantum entanglement can reduce the error probability which affects this statistical problem, giving a dramatic advantage over the use of classical light in the regime of few photons.<\/p>\n<p>This enhancement is exploited in two non-trivial tasks: the detection of low-reflectivity targets (quantum illumination [1,2]) and the readout of digital memories (quantum reading [3]).<\/p>\n<p>[1] S.-H. Tan et al., Phys. Rev. Lett. 101, 253601 (2008)<br \/>[2] S. Pirandola, and S. Lloyd, Phys. Rev. A 78, 012331 (2008)<br \/>[3] S. Pirandola, arXiv:0907.3398<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The optimal discrimination of two Gaussian channels is a central problem in quantum information theory. In this talk we discuss how the use of quantum entanglement can reduce the error probability which affects this statistical problem, giving a dramatic advantage over the use of classical light in the regime of few photons. This enhancement is [&hellip;]<\/p>\n","protected":false},"author":20,"featured_media":0,"template":"","class_list":["post-885","seminar","type-seminar","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar\/885","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar"}],"about":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/types\/seminar"}],"author":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/users\/20"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/media?parent=885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}