69 citations · 202 across the 8 of their papers we have counts for
5 papers · 1 filter
On the optimal measurement for quantum discord of two-qubit states
Mingjun Shi, Chunxiao Sun, Fengjian Jiang +2
We present an efficient method to solve the quantum discord of two-qubit X states exactly. A geometric picture is used to clarify whether and when the general POVM measurement is s…
Quantum discord of two-qubit rank-two states
Mingjun Shi, Wei Yang, Fengjian Jiang +1
Among various definitions of quantum correlations, quantum discord has attracted considerable attention. To find analytical expression of quantum discord is an intractable task. In…
Quantum Discord: A Dynamic Approach in Geometric Picture
Mingjun Shi, Fengjian Jiang, Jiangfeng Du
We present a dynamic approach to study the quantum discord and classical correlation. By local filtering operation, the evaluation of quantum discord is closely related to quantum…
Symmetric geometric measure and dynamics of quantum discord
Mingjun Shi, Fengjian Jiang, Jiangfeng Du
A symmetric measure of quantum correlation based on the Hilbert-Schmidt distance is presented in this paper. For two-qubit states, we simplify considerably the optimization procedu…
Geometric picture of quantum discord for two-qubit quantum states
Mingjun Shi, Fengjian Jiang, Chunxiao Sun +1
Among various definitions of quantum correlations, quantum discord has attracted considerable attention. To find analytical expression of quantum discord is an intractable task. Ex…