Superposition Quantification

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2017,（11）
• 页码范围: 565-570
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/0253-6102/68/5/565

摘要

The principle of superposition is universal and lies at the heart of quantum theory.Although ever since the inception of quantum mechanics a century ago,superposition has occupied a central and pivotal place,rigorous and systematic studies of the quantification issue have attracted significant interests only in recent years,and many related problems remain to be investigated.In this work we introduce a figure of merit which quantifies superposition from an intuitive and direct perspective,investigate its fundamental properties,connect it to some coherence measures,illustrate it through several examples,and apply it to analyze wave-particle duality.