Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, China
Corresponding author (email@example.com
Lixin HE acknowledges the support from Chinese National Fundamental Research Program (Grant No. 2011CB921200), National Natural Science Funds for Distinguished Young Scholars, and the Fundamental Research Funds for the Central Universities (Grant No. WK2470000006).
Entanglement of 4-qubit permutation-invariant state, i.e., Eq. (
Quantum discord of 4 and 5-qubit superpositions of two canonical orthonormal GHZ states as in (
(Color online) Quantum discord of $3$ to $6$ qubit states (
(Color online) Quantum discord of 4-qubit mboxstates (
(Color online) Robustness of the turning point: Quantum discord of the original 4-qubit state in (