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Open Quantum Systems Decoherence
Entanglement Theory Quantum Correlations
One-way deficit of SU(2) invariant states
arXiv
Authors: Yao-Kun Wang, Teng Ma, Shao-Ming Fei, Zhi-Xi Wang
Year
2013
Paper ID
33724
Status
Preprint
Abstract Read
~2 min
Abstract Words
81
Citations
N/A
Abstract
We calculate analytically the one-way deficit for systems consisting spin-j and spin-{1}{2} 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 as j increases, while the one-way deficit can remain significantly large.
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- This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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- We calculate analytically the one-way deficit for systems consisting spin-j and spin-12 subsystems with SU(2) symmetry.
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