A NEW PARAMETER OF ENTANGLEMENT FOR A QUBIT SYSTEM PLACED INSIDE A DISSIPATIVE CAVITY

被引：3

作者：

Abdel-Khalek, S. ^{[1
,2
]}

Obada, A. -S. F. ^{[3
]}

机构：

[1] Sohag Univ, Dept Math, Fac Sci, Sohag, Egypt

[2] Taif Univ, Dept Math, Fac Sci, At Taif, Saudi Arabia

[3] Al Azhar Univ, Dept Math, Fac Sci, Cairo, Egypt

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2011年 / 9卷 / 04期

关键词：

Trapped ion; phase damping; atomic Fisher information (AFI); entanglement sudden death (ESD); entanglement sudden birth (ESB); QUANTUM INFORMATION; JOSEPHSON-JUNCTION; TELEPORTATION;

D O I：

10.1142/S0219749911007861

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The entanglement in a system of a single two-level trapped ion and a single-mode quantized field in a coherent state inside a phase-damped cavity is investigated. Analytic results under certain parametric conditions are obtained, by means of which we analyze the influence of dissipation on the atomic Fisher information and its marginal distribution. An interesting relation between the temporal entanglement sudden birth, sudden death, atomic Fisher information and the dissipation effect is observed.

引用

页码：1091 / 1100

页数：10

共 30 条

[1] DYNAMICS OF FISHER INFORMATION IN KERR MEDIUM [J].

Abdel-Khalek, S. .

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 2009, 7 (08) :1541-1548

[2] Phase-space approach to continuous variable quantum teleportation [J].

Ban, M .

PHYSICAL REVIEW A, 2004, 69 (05) :054304-1

[3] Continuous variable teleportation as a generalized thermalizing quantum channel [J].

Ban, M ;

Sasaki, M ;

Takeoka, M .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2002, 35 (28) :L401-L405

[4] Quantum information and computation [J].

Bennett, CH ;

DiVincenzo, DP .

NATURE, 2000, 404 (6775) :247-255

[5] Teleportation of continuous quantum variables [J].

Braunstein, SL ;

Kimble, HJ .

PHYSICAL REVIEW LETTERS, 1998, 80 (04) :869-872

[6] Entanglement splitting of pure bipartite quantum states [J].

Bruss, D .

PHYSICAL REVIEW A, 1999, 60 (06) :4344-4348

[7] QUANTUM COMPUTATIONS WITH COLD TRAPPED IONS [J].

CIRAC, JI ;

ZOLLER, P .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4091-4094

[8] RAPID SOLUTION OF PROBLEMS BY QUANTUM COMPUTATION [J].

DEUTSCH, D ;

JOZSA, R .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1992, 439 (1907) :553-558

[9] Can quantum-mechanical description of physical reality be considered complete? [J].

Einstein, A ;

Podolsky, B ;

Rosen, N .

PHYSICAL REVIEW, 1935, 47 (10) :0777-0780

[10] QUANTUM CRYPTOGRAPHY BASED ON BELL THEOREM [J].

EKERT, AK .

PHYSICAL REVIEW LETTERS, 1991, 67 (06) :661-663

← 1 2 3 →