Quantum Metrology calculates the ultimate precision of all estimation<\/b><\/p>\n
strategies, measuring what is their root mean-square error (RMSE) and<\/b><\/p>\n
their Fisher information. Here, instead, we ask how many bits of the<\/b><\/p>\n
parameter we can recover, namely we derive an information-theoretic<\/b><\/p>\n
quantum metrology. In this setting we redefine “Heisenberg bound” and<\/b><\/p>\n
“standard quantum limit” (the usual benchmarks in quantum estimation<\/b><\/p>\n
theory), and show that the former can be attained only by sequential<\/b><\/p>\n
strategies or parallel strategies that employ entanglement among<\/b><\/p>\n
probes, whereas parallel-separable strategies are limited by the<\/b><\/p>\n
latter. We highlight the differences between this setting and the<\/b><\/p>\n
RMSE-based one.<\/b><\/p>\n","protected":false},"excerpt":{"rendered":"
Quantum Metrology calculates the ultimate precision of all estimation strategies, measuring what is their root mean-square error (RMSE) and their Fisher information. Here, instead, we ask how many bits of the parameter we can recover, namely we derive an information-theoretic quantum metrology. In this setting we redefine “Heisenberg bound” and “standard quantum limit” (the usual […]<\/p>\n","protected":false},"author":20,"featured_media":0,"template":"","class_list":["post-1102","seminar","type-seminar","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/giq\/wp-json\/wp\/v2\/seminar\/1102","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=1102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}