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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:38 |
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Conference: Bucharest University Faculty of Physics 2009 Meeting
Section: Theoretical Physics and Applied Mathematics Seminar
Title:
Quantum Chernoff bound as a measure of polarization for the radiation field
Authors:
Iulia Ghiu (1), Gunnar Bjork (2), Paulina Marian (1), and Tudor A. Marian (1)
Affiliation:
(1) Centre for Advanced Quantum Physics, University of Bucharest, PO Box MG-11, RO-077125, Bucharest-Magurele, Romania;
(2) School of Information and Communication Technology, Royal Institute of Technology (KTH), Electrum 229, SE 164 40 Kista, Sweden
E-mail
iulia.ghiu@g.unibuc.ro
Keywords:
polarization, quantized field
Abstract:
The degree of polarization of an arbitrary quantum state describing a transverse electromagnetic field can be defined as the distance between this state and the set of all quantum unpolarized states. We propose a new definition for the degree of polarization in terms of the quantum Chernoff bound. We apply the new definition to compute the degree of polarization of some particular quantized field states.
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