Loss of entanglement after propagation in a quantum noisy channel modeled by a canonical unitary operation in two qubits

被引：3

作者：

de Brito, Wellington Alves ^{[1
]}

Ramos, Rubens Viana ^{[1
]}

机构：

[1] Fed Univ Ceara, Dept Teleinformat Engn, BR-60755640 Fortaleza, Ceara, Brazil

来源：

PHYSICS LETTERS A | 2006年 / 360卷 / 02期

关键词：

entanglement; canonical unitaries; quantum noisy channel;

D O I：

10.1016/j.physleta.2006.08.039

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work, we analyze the loss of entanglement of bipartite states after propagation in a noisy channel modeled by the interaction between the bipartite state and the environment through a canonical unitary form of a two-qubit gate. An analytic expression for the entanglement loss is found. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：251 / 255

页数：5

共 5 条

[1] Quantum Noisy Channel Modeled by Canonical Unitary Operation in Two Qubits
de Brito, Wellington Alves
Ramos, Rubens Viana
PROCEEDINGS OF THE IEEE INTERNATIONAL TELECOMMUNICATIONS SYMPOSIUM, VOLS 1 AND 2, 2006, : 647 - +
[2] Entanglement change of mixed states under canonical unitary operations in two qubits
Wang, CZ
Li, CX
Guo, GC
PHYSICS LETTERS A, 2005, 337 (1-2) : 29 - 36
[3] Quantum Fisher information of two superconducting charge qubits under dephasing noisy channel
Abdel-Hameed, Hamada
Zidan, Nour
Metwally, Nasser
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2018, 32 (22):
[4] Entanglement between two uses of a noisy multipartite quantum channel enables perfect transmission of classical information
Duan, Runyao
Shi, Yaoyun
PHYSICAL REVIEW LETTERS, 2008, 101 (02)
[5] Enhancing entanglement of two-qubit states from amplitude damping channel using single-qubit unitary operation and local filtering operation
Zong, Xiao-Lan
Song, Wei
Yang, Ming
Cao, Zhuo-Liang
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 2021, 19 (01)

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