Decoherence in the three-state quantum walk

被引：3
|
作者：
Tude, Luisa Toledo [1 ,2 ]
Oliveira, Marcos Cesar de [1 ]
机构：
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Campinas, SP, Brazil
[2] Trinity Coll Dublin, Sch Phys, Dublin, Ireland
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2022年 / 605卷
关键词：
Quantum walks; Localization; Quantum noise; Broken links;
D O I：
10.1016/j.physa.2022.128012
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quantum walks are dynamic systems with a wide range of applications in quantum computation and quantum simulation of analog systems, therefore it is of common interest to understand what changes from an isolated process to one embedded in an environment. In the present work, we analyze the decoherence in a three-state uni-dimensional quantum walk. The approaches taken into consideration to account for the environment effects are phase and amplitude damping Kraus operators, unitary noise on the coin space, and broken links. The results are compared with the two-state quantum walk.(c) 2022 Elsevier B.V. All rights reserved.
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页数：11
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