Influence of Various Environments on Information and Entanglement Dynamics for Two Interacting Qubits

被引:1
作者
Obada, A. -S. F. [1 ]
Shaheen, M. E. [2 ]
机构
[1] Al Azhar Univ, Dept Math, Fac Sci, Nasr City, Cairo, Egypt
[2] Port Said Univ, Dept Math, Fac Sci, Port Said, Egypt
关键词
interacting qubits; Fisher information; negativity; entanglement; QUANTUM; DECOHERENCE; QUANTIFIERS; STATES; GATE;
D O I
10.1007/s10946-015-9473-4
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Analytical solutions of the master equation for two interacting qubits in different environments are considered. The qubits are initially prepared in a mixed state. Under the effect of different models of environments, we compare the temporal evolution of atomic quantum Fisher information with the negativity as a measure of entanglement.
引用
收藏
页码:24 / 34
页数:11
相关论文
共 43 条
[1]   Quantum Fisher information for a single qubit system [J].
Abdel-Khalek, S. ;
Berrada, K. ;
Obada, A. S. F. .
EUROPEAN PHYSICAL JOURNAL D, 2012, 66 (03)
[2]   A NEW PARAMETER OF ENTANGLEMENT FOR A QUBIT SYSTEM PLACED INSIDE A DISSIPATIVE CAVITY [J].
Abdel-Khalek, S. ;
Obada, A. -S. F. .
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 2011, 9 (04) :1091-1100
[3]   Interplay of information quantifiers and the modified Jaynes-Cummings model [J].
Abdel-Khalek, Sayed ;
Plastino, Angelo ;
Obada, Abdel-Shafy Fahmy .
CENTRAL EUROPEAN JOURNAL OF PHYSICS, 2011, 9 (06) :1426-1433
[4]   Environment-induced sudden death of entanglement [J].
Almeida, M. P. ;
de Melo, F. ;
Hor-Meyll, M. ;
Salles, A. ;
Walborn, S. P. ;
Ribeiro, P. H. Souto ;
Davidovich, L. .
SCIENCE, 2007, 316 (5824) :579-582
[5]   Entangling capacities of noisy two-qubit Hamiltonians [J].
Bandyopadhyay, S ;
Lidar, DA .
PHYSICAL REVIEW A, 2004, 70 (01) :010301-1
[6]   On quantum statistical inference [J].
Barndorff-Nielsen, OE ;
Gill, RD ;
Jupp, PE .
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY, 2003, 65 :775-805
[7]   Entangled macroscopic quantum states in two superconducting qubits [J].
Berkley, AJ ;
Xu, H ;
Ramos, RC ;
Gubrud, MA ;
Strauch, FW ;
Johnson, PR ;
Anderson, JR ;
Dragt, AJ ;
Lobb, CJ ;
Wellstood, FC .
SCIENCE, 2003, 300 (5625) :1548-1550
[8]   Quantum Fisher information for a qubit system placed inside a dissipative cavity [J].
Berrada, K. ;
Abdel-Khalek, S. ;
Obada, A. -S. F. .
PHYSICS LETTERS A, 2012, 376 (17) :1412-1416
[9]   Entangled states of trapped atomic ions [J].
Blatt, Rainer ;
Wineland, David .
NATURE, 2008, 453 (7198) :1008-1015
[10]   Spin-based all-optical quantum computation with quantum dots: Understanding and suppressing decoherence [J].
Calarco, T ;
Datta, A ;
Fedichev, P ;
Pazy, E ;
Zoller, P .
PHYSICAL REVIEW A, 2003, 68 (01) :21