Pancharatnam Phase and Quantum Correlation for Two-qubit System in Correlated Dephasing Environment

被引：2
|
作者：
Xie, Bing [1 ]
Zeng, G. R. [1 ]
Pan, Hui [2 ]
Wang, Zisheng [1 ,2 ,3 ]
机构：
[1] Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 330022, Peoples R China
[2] Univ Macau, Fac Sci & Technol, Inst Appl Phys & Mat Engn, Macau, Macao Sar, Peoples R China
[3] Ctr Quantum Sci & Technol, Nanchang 330022, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2016年 / 55卷 / 03期
关键词：
Pancharatnam phase; Quantum correlation; Two-qubit system; GEOMETRIC PHASE; SUPERCONDUCTING QUBITS; ENTANGLEMENT; STATE; GENERATION; FIDELITY;
D O I：
10.1007/s10773-015-2786-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The time-dependent Pancharatnam phase and the quantum correlations are studied for the two-qubit system in correlated dephasing environment. We find that in both X-state and Y-state, the rapid changes of the time-dependent Pancharatnam phase are intrinsic in the died and alive phenomena of quantum entanglement described by the concurrence under the exactly same parameters, while the slow changes of the time-dependent Pancharatnam phase correspond to the sudden death of entanglement. The results show that the time-dependent Pancharatnam phase includes the information of quantum correlations.
引用
收藏
页码：1474 / 1491
页数：18
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