Protecting and enhancing entanglement from correlated amplitude damping channel via non-Hermitian operation

Laser Physics ◽  
2021 ◽  
Vol 31 (10) ◽  
pp. 105204
Author(s):  
Qiong Wang ◽  
Lan Xu ◽  
Xing Xiao ◽  
Zhi He
Keyword(s):  
Amplitude Damping ◽  
Amplitude Damping Channel

Quantum correlation versus Bell-inequality violation under the amplitude damping channel

2015 ◽  
Vol 379 (43-44) ◽  
pp. 2802-2807 ◽  
Author(s):  
WenChao Ma ◽  
Shuai Xu ◽  
Jiadong Shi ◽  
Liu Ye
Keyword(s):  
Quantum Correlation ◽  
Bell Inequality ◽  
Amplitude Damping ◽  
Amplitude Damping Channel

The Holevo capacity of a generalized amplitude-damping channel

2007 ◽  
Vol 16 (7) ◽  
pp. 1843-1847 ◽  
Author(s):  
Hou Li-Zhen ◽  
Fang Mao-Fa
Keyword(s):  
Amplitude Damping ◽  
Amplitude Damping Channel

Time evolution law of the Laguerre-polynomial-weighted chaotic photon field in an amplitude-damping channel

2015 ◽  
Vol 93 (3) ◽  
pp. 283-289 ◽  
Author(s):  
Cheng Da ◽  
Qian-Fan Chen ◽  
Peng-Fei Zhang ◽  
Hong-Yi Fan
Keyword(s):  
Decay Rate ◽  
Time Evolution ◽  
Generating Function ◽  
Density Operator ◽  
Laguerre Polynomial ◽  
Hermite Polynomials ◽  
Evolution Law ◽  
Amplitude Damping ◽  
Photon Field ◽  
Amplitude Damping Channel

We examine how a Laguerre-polynomial-weighted chaotic photon field (LPWCPF), whose density operator is [Formula: see text], evolves in an amplitude-damping channel. By using a newly derived generating function of two-variable Hermite polynomials we obtain the evolution law of LPWCPF, which turns out to be a new LPWCPF with a new parameter, depending on 1 − e−2κt, where κ represents decay rate. The technique of integration (summation) within an ordered product of operators is used in our discussions.

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