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Fisher information as a generalized measure of coherence in classical and quantum optics



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Luis Aina, Alfredo (2012) Fisher information as a generalized measure of coherence in classical and quantum optics. Optics express, 20 (22). pp. 24686-24698. ISSN 1094-4087


Official URL: http://dx.doi.org/10.1364/OE.20.024686



We show that metrological resolution in the detection of small phase shifts provides a suitable generalization of the degrees of coherence and polarization. Resolution is estimated via Fisher information. Besides the standard two-beam Gaussian case, this approach provides also good results for multiple field components and nonGaussian statistics. This works equally well in quantum and classical optics.

Item Type:Article
Additional Information:

© 2012 OSA. This work has been 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. I thank the anonymous reviewers for one of the demonstrations in Appendix A and other useful suggestions.

Uncontrolled Keywords:Complete electromagnetic coherence; Space-frequency domain; Kullback relative entropy; Partially polarized-light; Youngs fringe visibility; Unitary transformations; Maximum visibility; Fields; Phase; Waves
Subjects:Sciences > Physics > Optics
ID Code:30349
Deposited On:25 May 2015 16:06
Last Modified:25 May 2015 16:06

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