NDLI: Purity and Covariance Matrix

Content Provider	Springer Nature Link
Author	Golubeva, T. Golubev, Yu.
Copyright Year	2014
Abstract	Basing on the simplest single-mode field source, we investigate the role of the various covariance matrices for reconstructing the field state and describing its quantum statistical properties. In spite of the fact that the intracavity field is a single-mode field, we take into account the natural multimode structure arising in the field, when it leaves the cavity for the free-space propagation. We show how the purity of the field state can be calculated using the different covariance matrices.
Starting Page	47
Ending Page	55
Page Count	9
File Format	PDF
ISSN	10712836
Journal	Journal of Russian Laser Research
Volume Number	35
Issue Number	1
e-ISSN	15738760
Language	English
Publisher	Springer US
Publisher Date	2014-02-09
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	quantum statistics correlations quantum-state reconstruction Wigner distribution covariance matrix purity Optics, Optoelectronics, Plasmonics and Optical Devices Laser Technology, Photonics Microwaves, RF and Optical Engineering
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Engineering

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Purity and Covariance Matrix