RT Journal Article
T1 Fisher information as a generalized measure of coherence in classical and quantum optics
A1 Luis Aina, Alfredo
AB 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.
PB The Optical Society Of America
SN 1094-4087
YR 2012
FD 2012-10-22
LK https://hdl.handle.net/20.500.14352/44587
UL https://hdl.handle.net/20.500.14352/44587
LA eng
NO © 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.
NO Ministerio de Ciencia e Innovacion (MICINN), España
NO Comunidad de Madrid
DS Docta Complutense
RD 9 may 2025