Quantifying Decoherence via Increases in Classicality

doi:10.3390/e23121594

CORC > 数学与系统科学研究院 > 中国科学院数学与系统科学研究院 > 应用数学研究所

	Quantifying Decoherence via Increases in Classicality
	Fu, Shuangshuang 1; Luo, Shunlong 2,3
刊名	ENTROPY
	2021-12-01
卷号	23 期号:12 页码:21
关键词	decoherence classicality channel open system interference
DOI	10.3390/e23121594
英文摘要	As a direct consequence of the interplay between the superposition principle of quantum mechanics and the dynamics of open systems, decoherence is a recurring theme in both foundational and experimental exploration of the quantum realm. Decoherence is intimately related to information leakage of open systems and is usually formulated in the setup of "system + environment" as information acquisition of the environment (observer) from the system. As such, it has been mainly characterized via correlations (e.g., quantum mutual information, discord, and entanglement). Decoherence combined with redundant proliferation of the system information to multiple fragments of environment yields the scenario of quantum Darwinism, which is now a widely recognized framework for addressing the quantum-to-classical transition: the emergence of the apparent classical reality from the enigmatic quantum substrate. Despite the half-century development of the notion of decoherence, there are still many aspects awaiting investigations. In this work, we introduce two quantifiers of classicality via the Jordan product and uncertainty, respectively, and then employ them to quantify decoherence from an information-theoretic perspective. As a comparison, we also study the influence of the system on the environment.
资助项目	National Key R&D Program of China[2020YFA0712700] ; Fundamental Research Funds for the Central Universities[FRF-TP-19-012A3] ; National Natural Science Foundation of China[11875317] ; National Natural Science Foundation of China[61833010]
WOS研究方向	Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000737171700001
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/59772]
专题	应用数学研究所
通讯作者	Luo, Shunlong
作者单位	1.Univ Sci & Technol, Sch Math & Phys, Beijing 100083, Peoples R China 2.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Fu, Shuangshuang,Luo, Shunlong. Quantifying Decoherence via Increases in Classicality[J]. ENTROPY,2021,23(12):21.
APA	Fu, Shuangshuang,&Luo, Shunlong.(2021).Quantifying Decoherence via Increases in Classicality.ENTROPY,23(12),21.
MLA	Fu, Shuangshuang,et al."Quantifying Decoherence via Increases in Classicality".ENTROPY 23.12(2021):21.