Time-Evolution of Photon-Number Distribution and Density Operator of Squeezed Thermal State in the Thermal Environment

2013 ◽  
Vol 52 (11) ◽  
pp. 4155-4162 ◽  
Author(s):  
Ye-Jun Xu ◽  
Xiang-Guo Meng
Keyword(s):  
Time Evolution ◽  
Density Operator ◽  
Thermal State ◽  
Thermal Environment ◽  
Photon Number ◽  
Number Distribution ◽  
Photon Number Distribution

NONCLASSICALITY AND DECOHERENCE OF PHOTON-ADDED THERMAL STATE

2010 ◽  
Vol 08 (08) ◽  
pp. 1373-1387 ◽  
Author(s):  
SHU-JING WANG ◽  
XUE-XIANG XU ◽  
SHAN-JUN MA
Keyword(s):  
Thermal State ◽  
Thermal Environment ◽  
Hermite Polynomials ◽  
Photon Number ◽  
Single Variable ◽  
State Characteristic ◽  
Number Formula ◽  
Analytical Expressions ◽  
Average Photon Number ◽  
Photon Number Distribution

Using the normally ordered form of thermal state characteristic of average photon number nc, we introduce the photon-added thermal state (PATS) and investigate its statistical properties, such as Mandel's Q-parameter, photon number distribution (PND), and Wigner function (WF). We then study its decoherence in a thermal environment with average thermal photon number [Formula: see text] and dissipative coefficient κ by deriving analytical expressions of the WF. The nonclassicality is discussed in terms of the negativity of the WF. It is found that the WF is always positive when [Formula: see text] for any number PATS. The expression for time evolution of the PND and the tomogram of PATS are also derived analytically, which are related to hypergeometric function and single variable Hermite polynomials.

Photon-Number Distribution and Wigner Function of Generalized Squeezed Thermal State

2012 ◽  
Vol 51 (9) ◽  
pp. 2681-2689 ◽  
Author(s):  
Jun Zhou ◽  
Jun Song ◽  
Hao Yuan ◽  
Bo Zhang ◽  
Chuan-Mei Xie ◽  
...  
Keyword(s):  
Wigner Function ◽  
Thermal State ◽  
Photon Number ◽  
Number Distribution ◽  
Photon Number Distribution

Squeezed coherent thermal state and its photon number distribution

1997 ◽  
Vol 6 (9) ◽  
pp. 681-689
Author(s):  
Li Yi-min ◽  
Xia Hui-rong ◽  
Wang Zu-geng ◽  
Xu Zai-xin
Keyword(s):  
Thermal State ◽  
Photon Number ◽  
Number Distribution ◽  
Photon Number Distribution

scholarly journals Optimal time-resolved photon number distribution reconstruction of a cavity field by maximum likelihood

2012 ◽  
Vol 14 (11) ◽  
pp. 115007 ◽  
Author(s):  
C Sayrin ◽  
I Dotsenko ◽  
S Gleyzes ◽  
M Brune ◽  
J M Raimond ◽  
...  
Keyword(s):  
Maximum Likelihood ◽  
Photon Number ◽  
Optimal Time ◽  
Cavity Field ◽  
Time Resolved ◽  
Number Distribution ◽  
Photon Number Distribution

SOME FEATURES OF SQUEEZED NEGATIVE BINOMIAL STATE

1992 ◽  
Vol 06 (03n04) ◽  
pp. 409-415 ◽  
Author(s):  
AMITABH JOSHI ◽  
S. V. LAWANDE
Keyword(s):  
Electromagnetic Field ◽  
Density Matrix ◽  
Wigner Function ◽  
Negative Binomial ◽  
Thermal State ◽  
Photon Number ◽  
Binomial State ◽  
Relationship Of ◽  
The Relationship ◽  
Photon Number Distribution

Properties of electromagnetic field in the squeezed negative binomial state are investigated in terms of photon number distribution and Wigner function. The relationship of the density matrix of the squeezed negative binomial state to the density matrix of the squeezed thermal state is shown explicitly. The possibility of generation of the negative binomial state is also discussed.

scholarly journals Multimode thermal states with multiphoton subtraction: Study of the photon-number distribution in the selected subsystem

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
K. G. Katamadze ◽  
G. V. Avosopiants ◽  
N. A. Bogdanova ◽  
Yu. I. Bogdanov ◽  
S. P. Kulik
Keyword(s):  
Photon Number ◽  
Number Distribution ◽  
Photon Number Distribution ◽  
Thermal States
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