Use of dynamical coupling for improved quantum state transfer

被引：32

作者：

Lyakhov, A. O. ^{[1
]}

Bruder, C. ^{[1
]}

机构：

[1] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.74.235303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a method to improve quantum state transfer in transmission lines. The idea is to localize the information on the last qubit of a transmission line by dynamically varying the coupling constants between the first and the last pair of qubits. The fidelity of state transfer is higher then in a chain with fixed coupling constants. The effect is stable against small fluctuations in the system parameters.

引用

页数：4

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