Analytic next-to-nearest-neighbor XX models with perfect state transfer and fractional revival

被引：23

作者：

Christandl, Matthias ^{[1
]}

Vinet, Luc ^{[2
]}

Zhedanov, Alexei ^{[3
]}

机构：

[1] Univ Copenhagen, Dept Math Sci, QMATH, Univ Pk 5, DK-2100 Copenhagen O, Denmark

[2] Univ Montreal, Ctr Rech Math, CP 6128,Succ Ctr Ville, Montreal, PQ H3C 3J7, Canada

[3] Renmin Univ China, Sch Informat, Dept Math, Beijing 100872, Peoples R China

来源：

PHYSICAL REVIEW A | 2017年 / 96卷 / 03期

基金：

瑞士国家科学基金会; 欧洲研究理事会; 加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevA.96.032335

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Certain nonuniformly coupled spin chains can exhibit perfect transfer of quantum states from end to end. Motivated by recent experimental implementations in evanescently coupled waveguide arrays, we extend the simplest such chain to next-to-nearest-neighbor couplings. It is shown analytically that perfect state transfer can be maintained under the extension and that end-to-end entanglement generation (fractional revival) can occur.

引用

页数：10

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