Experimental Progress on Quantum Coherence: Detection, Quantification, and Manipulation

• DOI: 10.1002/qute.202100040
• Publication Date: 2021-07-13T07:02:27Z
• Authors: Kang‐Da Wu; Alexander Streltsov; Bartosz Regula; Guo‐Yong Xiang; Chuan‐Feng Li; Guang‐Can Guo
• Keywords: Coherence theory; Degree of coherence; Multipartite

Quantum coherence is a fundamental property of quantum systems, separating from classical physics. Recently, there has been significant interest in the characterization as resource, investigating how can be extracted and used for technological applications. In this work we review progress research, focusing particular on recent experimental efforts. After brief underlying theory discuss main platforms realizing experiments: linear optics, nuclear magnetic resonance, superconducting systems. We then consider detection quantification coherence, state conversion distillation, experiments dynamics coherence. also exploring connections between uncertainty relations, path information, operations measurements. Experimental efforts multipartite multilevel are discussed.