Suppressing the information losses of accelerated qubit-qutrit system

被引:14
作者
Abd-Rabbou, M. Y. [1 ]
Metwally, N. [2 ,3 ]
Ahmed, M. M. A. [1 ]
Obada, A-S F. [1 ]
机构
[1] Al Azhar Univ, Fac Sci, Dept Math, Cairo 11884, Egypt
[2] Univ Bahrain, Coll Sci, Dept Math, Zallaq, Bahrain
[3] Aswan Univ Aswan, Dept Math, Sahari 81528, Egypt
关键词
Quantum Fisher information; local and nonlocal information; noisy channels; qubit-qutrit; Rindler space; QUANTUM FISHER INFORMATION; ENTANGLEMENT;
D O I
10.1142/S0219749919500321
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Protecting the accelerated information coherence and suppressing of its decay due to the acceleration is achieved by using different noisy channels. The behavior of three different types of information; Fisher, nonlocal and local information of qubit-qutrit system is discussed. It is shown that, the estimation rate of the acceleration parameter is maximized if both subsystems are accelerated and interacted locally with their noise channels. However, if the largest subsystem is accelerated, then the estimation rate is minimized The rate of change of the nonlocal information depends on which subsystem is accelerated. The results display that the local information is almost unaltered during the acceleration process, that is, the information is frozen. We show that the phase-flip channel represents the weak channel, where its suppressing of the decay due to the acceleration is smaller than the dephasing and depolarize of channels.
引用
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页数:21
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共 30 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]   STATISTICAL DISTANCE AND THE GEOMETRY OF QUANTUM STATES [J].
BRAUNSTEIN, SL ;
CAVES, CM .
PHYSICAL REVIEW LETTERS, 1994, 72 (22) :3439-3443
[3]   Unruh effect in quantum information beyond the single-mode approximation [J].
Bruschi, David E. ;
Louko, Jorma ;
Martin-Martinez, Eduardo ;
Dragan, Andrzej ;
Fuentes, Ivette .
PHYSICAL REVIEW A, 2010, 82 (04)
[5]   Scalable quantum computation via local control of only two qubits [J].
Burgarth, Daniel ;
Maruyama, Koji ;
Murphy, Michael ;
Montangero, Simone ;
Calarco, Tommaso ;
Nori, Franco ;
Plenio, Martin B. .
PHYSICAL REVIEW A, 2010, 81 (04)
[6]   Entanglement for a two-parameter class of states in 2 ⊗ n quantum system [J].
Chi, DP ;
Lee, S .
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2003, 36 (45) :11503-11511
[7]   The Unruh effect and its applications [J].
Crispino, Luis C. B. ;
Higuchi, Atsushi ;
Matsas, George E. A. .
REVIEWS OF MODERN PHYSICS, 2008, 80 (03) :787-838
[8]   Entanglement and discord: Accelerated observations of local and global modes [J].
Doukas, Jason ;
Brown, Eric G. ;
Dragan, Andrzej ;
Mann, Robert B. .
PHYSICAL REVIEW A, 2013, 87 (01)
[9]   Relativistic motion with superconducting qubits [J].
Felicetti, S. ;
Sabin, C. ;
Fuentes, I. ;
Lamata, L. ;
Romero, G. ;
Solano, E. .
PHYSICAL REVIEW B, 2015, 92 (06)
[10]   Quantum metrology [J].
Giovannetti, V ;
Lloyd, S ;
Maccone, L .
PHYSICAL REVIEW LETTERS, 2006, 96 (01)