Tsallis entropy and entanglement constraints in multiqubit systems
Journal Article
·
· Physical Review. A
- Institute for Quantum Information Science, University of Calgary, Calgary, Alberta T2N 1N4 (Canada)
We show that the restricted shareability and distribution of multiqubit entanglement can be characterized by Tsallis-q entropy. We first provide a class of bipartite entanglement measures named Tsallis-q entanglement, and provide its analytic formula in two-qubit systems for 1{<=}q{<=}4. For 2{<=}q{<=}3, we show a monogamy inequality of multiqubit entanglement in terms of Tsallis-q entanglement, and we also provide a polygamy inequality using Tsallis-q entropy for 1{<=}q{<=}2 and 3{<=}q{<=}4.
- OSTI ID:
- 21413202
- Journal Information:
- Physical Review. A, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.062328; (c) 2010 The American Physical Society; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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