NDLI: Polarization States of Light and Their Quantum Tomography

Content Provider	Springer Nature Link
Author	Karassiov, V. P.
Copyright Year	2005
Abstract	The notion and main features of polarization states of light are discussed within the framework of classical and quantum optics. This notion is shown to be correctly defined for arbitrary light beams only within quantum optics by using the P-quasispin formalism developed earlier. Polarization states of quantum light are shown to be fully described by a polarization density operator (PDO) obtained via reducing the total field density operator. Theoretical foundations are given for quantum tomography of polarization states of light fields considered as a way of measuring PDO. Herewith, the main attention is paid to a method where proper polarization tomographic observables (PDO “measurers”) are used. The method is shown to be adequately formulated by means of quasi-spectral tomographic expansions of PDO in special operator bases (given by finite sums of partially orthogonal projectors), which determine probability distributions of tomographic observables as expansion coefficients. Matrix versions of such “tomographic” PDO representations are obtained. In particular, projections of these expansions on quasiclassical operator bases, determining polarization quasiprobability functions, are given. An example of experimental implementation of polarization tomography of unpolarized light (biphoton radiation with hidden polarization) is analyzed.
Starting Page	484
Ending Page	513
Page Count	30
File Format	PDF
ISSN	10712836
Journal	Journal of Russian Laser Research
Volume Number	26
Issue Number	6
e-ISSN	15738760
Language	English
Publisher	Kluwer Academic Publishers-Consultants Bureau
Publisher Date	2005-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	polarization states of radiation Stokes parameters polarization SU(2)-invariance of light fields P-quasispin operators polarization coherent states polarization density operator quasiclassical analysis quasiprobability functions quantum tomography tomographic observables quantum state measurement Applied Optics, Optoelectronics, Optical Devices Laser Technology and Physics, Photonics Microwaves, RF and Optical Engineering
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Engineering

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