Relations Between Characteristic Function,Positive P-Representation and Coherent Thermal State

<正> We employ the coherent thermal states(a kind of entangled states)in thermal field dynamics to establisha complete entangled state formalism expressing pseudo-classical representations of density operator for light field.Especially,the relationship between the coherent thermal state...

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Bibliographic Details
Published in:Communications in theoretical physics 2007-07, Vol.48 (7), p.67-70
Main Author: FAN Hong-Yi XU Xing-Lei Department of Material Science and Engineering,University of Science and Technology of China,Hefei 230026,China2 Department of Physics,Shanghai Jiao Tong University,Shanghai 200030,China3 Department of Physics,Heze University,Heze 274015,China
Format: Article
Language:English
Subjects:
characteristic
coherent
function
P-representation
positive
state
thermal
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Summary:<正> We employ the coherent thermal states(a kind of entangled states)in thermal field dynamics to establisha complete entangled state formalism expressing pseudo-classical representations of density operator for light field.Especially,the relationship between the coherent thermal state and the characteristic function and the positive Prepresentation in quantum optics theory are obtained.
ISSN:0253-6102
DOI:10.1088/0253-6102/48/1/014