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Nonclassicality in phase by breaking classical bounds on statistics



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Martín, Daniel and Luis Aina, Alfredo (2010) Nonclassicality in phase by breaking classical bounds on statistics. Physical review A, 82 (3). 033829/1-033829/7. ISSN 1050-2947


Official URL: http://dx.doi.org/10.1103/PhysRevA.82.033829



We derive upper bounds on the statistics of phase and phase difference that are satisfied by all classical states. They are obtained by finding the maximum projection of classical states on phase states. For a single-mode phase, meaningful bounds are obtained conditioned to a fixed mean number of photons. We also derive classical bounds for the projection on phase-coherent states, discussing their relation with phase-state bounds within the context of analytic representations. We find states with nonclassical phase properties disclosed by the violation of these classical bounds. These are quadrature and SU(2) squeezed states and phase-coherent states.

Item Type:Article
Additional Information:

©2010 The American Physical Society. A.L. acknowledges support from Project No. FIS2008-01267 of the Spanish Direccion General de Investigacion del Ministerio de Ciencia e Innovacion, and from Project No. QUITEMAD S2009-ESP-1594 of the Consejeria de Educacion de la Comunidad de Madrid.

Uncontrolled Keywords:Analytic representations; Quantum optics; Coherent states; Unit disc; Difference; Distance; Light; Field; Spectroscopy; Oscillator
Subjects:Sciences > Physics > Optics
ID Code:30529
Deposited On:01 Jun 2015 14:21
Last Modified:01 Jun 2015 14:21

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