.png){kind=icon}
返回
Two-qudit geometric phase evolution under dephasing
.png){kind=icon}
OA
AI
DOI：10.1016/j.aop.2018.01.005.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
In this work, we study a bipartite system composed by a pair of entangled qudits under dephasing, showing how the dynamics can be decoupled into two main sectors. In one of them, the concurrence of the effective state needed to compute the geometric phase generally decays to zero at asymptotic times. Of course, an evolution restricted to this sector can occur or not, depending on the initial state. Among the possibilities, there is a maximally entangled qutrit state (MES) that undergoes a restricted evolution. In this case, instead of decaying to zero, the concurrence as well as the geometric phase signal a transition to an effective two-qubit MES at asymptotic times. Next, we obtain the analytic solution to the master equation for a general initial two-qutrit state, and identify a whole class of decoherence free states. The associated observables, evolving in the presence of the environment, are robust against decoherence regardless of the coupling constants and operating weights. Among them, we obtained all the MES states which are robust against decoherence. The enhanced stability properties around them provides a strategy to minimize the effects of the environment on fractional topological phases. (C) 2018 Elsevier Inc. All rights reserved.
Keyword:
Geometric phases
Decoherence
Qudits
Entanglement
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3
论文数:
5.5K
被引数:
1.8W
机构
引用论文
A variable neighborhood search method for generalized blockmodeling of two-mode binary matrices
PREAI
分享收藏Tristhienylphenylamine – extended dithiafulvene hybrids as bifunctional electroactive species三苯基苯胺–扩展二硫富瓦烯杂化物作为双功能电活性物种
PREAI
分享收藏分享收藏Renal Function in Rats with Unilateral Proteinuria Produced by Renal Perfusion with AminonucleosideOAAI
OAAI分享收藏Simplifying quantum logic using higher-dimensional Hilbert spaces使用高维希尔伯特空间简化量子逻辑.png)
NATURE PHYSICSOAAI
NATURE PHYSICSIF18.4
OAAI分享收藏
查看更多内容