Classical driving-assisted quantum evolution speedup

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-09-15 DOI:10.1088/1612-202x/ad771b

Hu-ping Peng, Zhi-guang Tan, Hai-jie Peng and You-neng Guo

引用次数: 0

Abstract

In this study, we propose accelerating the qubit evolution using external classical driving fields in open systems. The results show that the quantum speed limit is determined by the driving strength, population of the initial excited state, and quantum coherence of the initial state. In the Markovian regime, the evolution of the open system will be accelerated by increasing the driving strength, while in non-Markovian regime, the evolution of the open system will present acceleration and deceleration periodically. Moreover, in both Markovian and non-Markovian regime, the population of the initial excited state and the initial-state coherence always can make the quantum speed limit bound tighter.

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经典驱动辅助量子进化加速

在这项研究中，我们提出在开放系统中利用外部经典驱动场加速量子比特的演化。结果表明，量子速度极限由驱动强度、初始激发态的种群和初始态的量子相干性决定。在马尔可夫体系中，开放系统的演化会随着驱动强度的增加而加速；而在非马尔可夫体系中，开放系统的演化会呈现周期性的加速和减速。此外，在马尔可夫体系和非马尔可夫体系中，初始激发态的群体和初始状态的相干性总是能使量子速度极限约束变得更紧。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.