Dissipation of a two-mode squeezed vacuum state in the single-mode amplitude damping channel |
| |
| Authors: | Zhou Nan-Run Hu Li-Yun and Fan Hong-Yi |
| |
| Institution: | Department of Electronic Information Engineering, Nanchang University, Nanchang 330031, China; Department of Physics, Shanghai Jiao Tong University, Shanghai 200030, China; School of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China |
| |
| Abstract: | We explore how a two-mode squeezed vacuum state sechθ ea+b+ tanh θ |00> evolves when it undergoes a singlemode amplitude dissipative channel with rate of decay κ. We find that in this process not only the squeezing parameter decreases, tanh θ → e-κt tanh θ, but also the second-mode vacuum state evolves into a chaotic state exp{b+bln1 - e-2κt tanh2 θ]}. The outcome state is no more a pure state, but an entangled mixed state. |
| |
| Keywords: | amplitude dissipative channel two-mode squeezed vacuum state two-mode entangled state quantum communication |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|
