155 citations · 1.2k across the 47 of their papers we have counts for
5 papers · 2 filters
Direct and Parallel Tomography of a Quantum Process
Yu-Xiang Zhang, Shengjun Wu, Zeng-Bing Chen
As the method to completely characterize quantum dynamical processes, quantum process tomography (QPT) is vitally important for quantum information processing and quantum control,…
Amplification limit of weak measurements: a variational approach
Shengshi Pang, Todd A. Brun, Shengjun Wu +1
Post-selected weak measurement has been widely used in experiments to observe weak effects in various physical systems. However, it is still unclear how large the amplification abi…
Unambiguous discrimination of extremely similar states by a weak measurement
Chang Qiao, Shengjun Wu, Zeng-Bing Chen
In this paper, we propose a method to discriminate two extremely similar quantum states via a weak measurement. For the two states with equal prior probabilities, the optimum discr…
State tomography via weak measurements
Shengjun Wu
Recent work has revealed that the wave function of a pure state can be measured directly and that complementary knowledge of a quantum system can be obtained simultaneously by weak…
Reveal quantum correlation in complementary bases
Shengjun Wu, Zhihao Ma, Zhihua Chen +1
An essential feature of genuine quantum correlation is the simultaneous existence of correlation in complementary bases. We reveal this feature of quantum correlation by defining m…