RT Journal Article
T1 Signal detection without finite-energy limits to quantum resolution
A1 Luis Aina, Alfredo
AB We show that there are extremely simple signal detection schemes where the finiteness of energy resources places no limit on the resolution. On the contrary, larger resolution can be obtained with lower energy. To this end the generator of the signal-dependent transformation encoding the signal information on the probe state must be different from the energy. We show that the larger the deviation of the probe state from being the minimum-uncertainty state, the better the resolution.
PB Elsevier Masson
SN 0003-4916
YR 2013
FD 2013-04
LK https://hdl.handle.net/20.500.14352/34656
UL https://hdl.handle.net/20.500.14352/34656
LA eng
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NO © 2012 Elsevier Inc. A.L. acknowledges Drs. A. Rivas and M.J.W. Hall for enlightening comments. This work was supported by Project No. FIS2008-01267 of the Spanish Direccion General de Investigacion del Ministerio de Ciencia e Innovacion, and from Project QUITEMAD S2009-ESP-1594 of the Consejeria de Educacion de la Comunidad de Madrid.
NO Comunidad de Madrid
NO Ministerio de Ciencia e Innovación (MCINN), España
NO Ministerio de Economía y Competitividad (MINECO), España
DS Docta Complutense
RD 28 abr 2024