69 citations · 202 across the 8 of their papers we have counts for
7 papers · 1 filter
Four-order power reduction in nanoscale electron-nuclear double resonance with a nitrogen-vacancy center in diamond
Zhiyi Hu, Fengjian Jiang, Jingyan He +4
Detecting nuclear spins using single Nitrogen-Vacancy (NV) centers is of particular importance in nano-scale science and engineering, but often suffers from the heating effect of m…
Wavelet-based fast time-resolved magnetic sensing with electronic spins in diamond
Nanyang Xu, Fengjian Jiang, Yu Tian +6
Time-resolved magnetic sensing is of great importance from fundamental studies to applications in physical and biological sciences. Recently the nitrogen-vacancy (NV) defect center…
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…