Work

Quantum coherence and correlations in quantum system

Year: 2015

Type: article

Abstract: Criteria of measure quantifying quantum coherence, a unique property of quantum system, are proposed recently. In this paper, we first give an uncertainty-like expression relating the coherence and the entropy of quantum system. This finding allows us to discuss the relations between the entanglement and the coherence. Further, we discuss in detail the relations among the coherence, the discord and the deficit in the bipartite quantum system. We show that, the one-way quantum deficit is equal to the sum between quantum discord and the relative entropy of coherence of measured subsystem.

Source: Scientific Reports

DOI: 10.1038/srep10922

Authors: Zhengjun Xi, Yongming Li, Heng Fan

Institutions: Shaanxi Normal University, Chinese Academy of Sciences, Collaborative Innovation Center of Quantum Matter, Institute of Physics

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,690

Funders: National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities