Published January 2019 | Version v1
Journal article

Finer distribution of quantum correlations among multiqubit systems

  • 1. Capital Normal University, School of Mathematical Sciences (China)

Description

We study the distribution of quantum correlations characterized by monogamy relations in multipartite systems. By using the Hamming weight of the binary vectors associated with the subsystems, we establish a class of monogamy inequalities for multiqubit entanglement based on the αth (α2) power of concurrence, and a class of polygamy inequalities for multiqubit entanglement in terms of the βth (0β2) power of concurrence and concurrence of assistance. Moveover, we give the monogamy and polygamy inequalities for general quantum correlations. Application of these results to quantum correlations like squared convex-roof extended negativity, entanglement of formation and Tsallis-q entanglement gives rise to either tighter inequalities than the existing ones for some classes of quantum states or less restrictions on the quantum states. Detailed examples are presented.

Additional details

Identifiers

Publishing Information

Journal Title
Quantum Information Processing (Print)
Journal Volume
18
Journal Issue
1
Journal Page Range
p. 1-22
ISSN
1570-0755

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51119382
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
QUANTUM COMPUTERS; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS; QUANTUM STATES; QUANTUM SYSTEMS; QUBITS; VECTORS
Descriptors DEC
COMPUTERS; INFORMATION; MECHANICS; QUANTUM INFORMATION; TENSORS

Optional Information

Copyright
Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature
Notes
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