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oai:docta.ucm.es:20.500.14352/346562023-08-25T12:47:41Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Luis Aina, Alfredo author 2013-04 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. 0003-4916 10.1016/j.aop.2012.12.004 https://hdl.handle.net/20.500.14352/34656 http://dx.doi.org/10.1016/j.aop.2012.12.004 http://www.sciencedirect.com/ http://arxiv.org/abs/1203.4325 Signal detection without finite-energy limits to quantum resolution