Restraining the decoherence of accelerated qubit-qutrit system via local Markovian channels

被引:13
作者
Abd-Rabbou, M. Y. [1 ]
Metwally, N. [2 ,3 ]
Obada, A-S F. [1 ]
Ahmed, M. M. A. [1 ]
机构
[1] Al Azhar Univ, Fac Sci, Math Dept, Cairo 11884, Egypt
[2] Univ Bahrain, Coll Sci, Math Dept, POB 320038, Zallaq, Southern Govern, Bahrain
[3] Aswan Univ, Dept Math, Aswan 81528, Sahari, Egypt
关键词
accelerated qubit-qutrit; Fisher information; channel capacity; CAPACITY; DYNAMICS;
D O I
10.1088/1402-4896/ab2427
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The effects of noisy channels on the quantum Fisher information, channel capacity and non-local information of an accelerated qubit-qutrit system are discussed. Different phenomena are predicted for all these physical quantities, namely sudden/gradual and frozen behaviors. It is shown that the channel strength plays the central role in frozen behavior for all the noisy channels considered. The decay/increase rate depends on which subsystem is accelerated (qubit or qutrit). The frozen areas of these quantities are depicted at different ranges of channel strength and initial input. The maximum/minimum bounds of the estimation degree of the considered quantities depend on the used noisy channel and the dimensions of the accelerated subsystem.
引用
收藏
页数:13
相关论文
共 29 条
[1]   von Neumann capacity of noisy quantum channels [J].
Adami, C ;
Cerf, NJ .
PHYSICAL REVIEW A, 1997, 56 (05) :3470-3483
[2]  
[Anonymous], 2012, ELEMENTS INFORM THEO
[3]   Channel capacities of an exactly solvable spin-star system [J].
Arshed, Nigum ;
Toor, A. H. ;
Lidar, Daniel A. .
PHYSICAL REVIEW A, 2010, 81 (06)
[4]   Memory effects in spin-chain channels for information transmission [J].
Bayat, Abolfazl ;
Burgarth, Daniel ;
Mancini, Stefano ;
Bose, Sougato .
PHYSICAL REVIEW A, 2008, 77 (05)
[5]   Noise-Enhanced Classical and Quantum Capacities in Communication Networks [J].
Caruso, Filippo ;
Huelga, Susana F. ;
Plenio, Martin B. .
PHYSICAL REVIEW LETTERS, 2010, 105 (19)
[6]   The private classical capacity and quantum capacity of a quantum channel [J].
Devetak, I .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (01) :44-55
[7]   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)
[8]   Decoherent dynamics of quantum correlations in qubit-qutrit systems [J].
Guo, Jin-Liang ;
Li, Hui ;
Long, Gui-Lu .
QUANTUM INFORMATION PROCESSING, 2013, 12 (11) :3421-3435
[9]  
Holevo A. S., 1973, Problemy Peredachi Informatsii, V9, P3
[10]   Parameter estimation using NOON states over a relativistic quantum channel [J].
Hosler, Dominic ;
Kok, Pieter .
PHYSICAL REVIEW A, 2013, 88 (05)