Work

Exploring multipartite quantum correlations with the square of quantum discord

Year: 2013

Type: article

Abstract: We explore the quantum correlation distribution in multipartite quantum states based on the square of quantum discord (SQD). For tripartite quantum systems, we derive the necessary and sufficient condition for the SQD to satisfy the monogamy relation. Particularly, we prove that the SQD is monogamous for three-qubit pure states, based on which a genuine tripartite quantum correlation measure is introduced. In addition, we also address the quantum correlation distributions in four-qubit pure states. As an example, we investigate multipartite quantum correlations in the dynamical evolution of multipartite cavity-reservoir systems.

Source: Physical Review A

DOI: 10.1103/physreva.88.012123

Authors: Yan-Kui Bai, Na Zhang, Ming-Yong Ye, Z. D. Wang

Institutions: University of Hong Kong, Hebei Normal University, Fujian Normal University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Hebei Normal University

OpenAlex ID: W1990248806

FWCI: 4.979

Cites: 64

Cited by: 87

Related to: 10