Quantum Measurement Bounds beyond the Uncertainty Relations

In quantum mechanics, the Heisenberg uncertainty relations and the Cramér-Rao inequalities typically limit the precision in the estimation of a parameter through the standard deviation of a conjugate observable. Here we extend these relations by giving a bound to the precision of a parameter in term...

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Bibliographic Details
Main Authors: Giovannetti, Vittorio, Lloyd, Seth, Maccone, Lorenzo
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article
Language:en_US
Published: American Physical Society 2012
Online Access:http://hdl.handle.net/1721.1/73516