Article ID Journal Published Year Pages File Type
1856361 Annals of Physics 2016 10 Pages PDF
Abstract

We provide generalized entanglement constraints in multi-qubit systems in terms of Tsallis entropy. Using quantum Tsallis entropy of order qq, we first provide a generalized monogamy inequality of multi-qubit entanglement for q=2q=2 or 33. This generalization encapsulates the multi-qubit CKW-type inequality as a special case. We further provide a generalized polygamy inequality of multi-qubit entanglement in terms of Tsallis-qq entropy for 1≤q≤21≤q≤2 or 3≤q≤43≤q≤4, which also contains the multi-qubit polygamy inequality as a special case.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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