Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1899644 | Reports on Mathematical Physics | 2014 | 11 Pages |
Abstract
We calculate analytically the one-way deficit for systems consisting of spin-j and spin-
12 subsystems with SU(2) symmetry. Comparing our results with the quantum discord of SU(2) invariant states, we show that the one-way deficit is equal to the quantum discord for half-integer j, and is larger than the quantum discord for integer j. Moreover, we also compare the one-way deficit with entanglement of formation. The quantum entanglement tends to zero if j increases, while the one-way deficit can remain significantly large.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Yao-Kun Wang, Teng Ma, Shao-Ming Fei, Zhi-Xi Wang,