Selective dynamical decoupling for quantum state transfer

被引:4
作者
Frydrych, H. [1 ]
Hoskovec, A. [2 ]
Jex, I. [2 ]
Alber, G. [1 ]
机构
[1] Tech Univ Darmstadt, Inst Angew Phys, D-64289 Darmstadt, Germany
[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Dept Phys, CR-11519 Prague 1, Stare Mesto, Czech Republic
关键词
quantum state transfer; quantum communication; dynamical decoupling; quantum error correction; quantum information;
D O I
10.1088/0953-4075/48/2/025501
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
State transfer across discrete quantum networks is one of the elementary tasks of quantum information processing. Its aim is the faithful placement of information into a specific position in the network. However, all physical systems suffer from imperfections, which can severely limit the transfer fidelity. We present selective dynamical decoupling schemes which are capable of stabilizing imperfect quantum state transfer protocols on the model of a bent linear qubit chain. The efficiency of the schemes is tested and verified in numerical simulations on a number of realistic cases. The simulations demonstrate that these selective dynamical decoupling schemes are capable of suppressing unwanted errors in quantum state transfer protocols efficiently.
引用
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页数:10
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