Article ID Journal Published Year Pages File Type
975073 Physica A: Statistical Mechanics and its Applications 2008 9 Pages PDF
Abstract
We obtain an exact expression of the negativity for SU(2)-invariant bipartite spin-(1,s) states via the partial time reversal method. Studies of thermal states show that the threshold temperature of entanglement may be arbitrary high when s is sufficient large, indicating that the entanglement is very robust against temperature. Negativities in bilinear-biquadratic system are also considered.
Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
Authors
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