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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:40 |
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Conference: Bucharest University Faculty of Physics 2018 Meeting
Section: Theoretical Physics and Applied Mathematics
Title:
The behaviour of quantum degree of polarization under degaussification
Authors:
Iulia Ghiu (1,2), Paulina Marian (2), and Tudor A. Marian (2)
Affiliation:
1) University of Bucharest, Faculty of Physics, P.O. Box MG-11, Bucharest-Magurele, Romania
2) Centre for Advanced Quantum Physics, University of Bucharest, Magurele, Romania
E-mail
iulia.ghiu@g.unibuc.ro
Keywords:
polarization, thermal state, addition of photons
Abstract:
Our work here deals with the behaviour of different degrees of polarization under a degaussification process. We consider addition of photons to a two-mode thermal state to get mixed nonGaussian states. We investigate the Stokes-operators-based degrees of polarization and two distance-type measures of polarization. We compare the evaluated degrees for photon-added states with the corresponding ones for two-mode thermal states.
References:
[1] G. Bjork, J. Soderholm, L. L. Sanchez-Soto, A. B. Klimov, I. Ghiu, P. Marian, and T. A. Marian, Opt. Commun. 283, 4440-4447 (2010).
[2] I. Ghiu, G. Bjok, P. Marian, and T. A. Marian, Phys. Rev. A 82, 023803 (2010).
Acknowledgement:
This research was supported by a grant of Ministery of Research and Innovation, CNCS-UEFISCDI, Project number PN-III-P4-ID-PCE-2016-0794, within PNCDI III. Iulia Ghiu acknowledges also the support of the University of Bucharest, Faculty of Physics.
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