Geometric Global Quantum Discord of Arbitrarily Two-qubit States
Yunlong Xiao, Tao Li, Shao-Ming Fei, Xianqing Li-Jost, Naihuan Jing, and Zhi-Xi Wang
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Submission date: 30. Jan. 2015
published in: Chinese physics / B, 25 (2016) 3, art-no. 030301
DOI number (of the published article): 10.1088/1674-1056/25/3/030301
with the following different title: Geometric global quantum discord of two-qubit states
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We study the geometric global quantum discord (GGQD) of two-qubit systems. We give an approach for deriving analytical formulae of GGQD for arbitrary two-qubit states. Detailed examples are presented.