Entanglement enhancement for two spins assisted by two phase kicks

被引：5

作者：

Burlak, Gennadiy ^{[1
]}

Sainz, Isabel ^{[2
]}

Klimov, Andrei B. ^{[2
]}

机构：

[1] Univ Autonoma Estado Morelos, Ctr Invest Ingn & Ciencias Aplicadas, Cuernavaca 62209, Morelos, Mexico

[2] Univ Guadalajara, Dept Fis, Guadalajara 44420, Jalisco, Mexico

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 02期

关键词：

QUANTUM COMPUTATION; CLUSTER STATE;

D O I：

10.1103/PhysRevA.80.024301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the entanglement dynamics in a two-spin system governed by a bilinear Hamiltonian and assisted by phase kicks. It is found that the application of instant kicks to both spins at some specific moments leads to enhancement of entanglement. This procedure also improves the transient character of entanglement leading, for large spins, to a formation of a plateau for the I concurrence. We have numerically investigated the spin-spin dynamics for several values of spins and observed a substantial enhancement of entanglement in comparison to the evolution without kicks.

引用

页数：4

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