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Quantifying quantum correlation via quantum coherence |
Guang-Yong Zhou, Lin-Jian Huang, Jun-Ya Pan, Li-Yun Hu, Jie-Hui Huang( ) |
| College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China |
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Abstract Resource theory is applied to quantify the quantum correlation of a bipartite state and a computable measure is proposed. Since this measure is based on quantum coherence, we present another possible physical meaning for quantum correlation, i.e., the minimum quantum coherence achieved under local unitary transformations. This measure satisfies the basic requirements for quantifying quantum correlation and coincides with concurrence for pure states. Since no optimization is involved in the final definition, this measure is easy to compute irrespective of the Hilbert space dimension of the bipartite state.
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| Keywords
resource theory
quantum correlation
quantum coherence
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Corresponding Author(s):
Jie-Hui Huang
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Issue Date: 29 June 2018
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