196 citations · 1.2k across the 29 of their papers we have counts for
3 papers · 1 filter
Nonexistence of a universal quantum machine to examine the precision of unknown quantum states
Shengshi Pang, Shengjun Wu, Zeng-Bing Chen
In this work, we reveal a new type of impossibility discovered in our recent research which forbids comparing the closeness of multiple unknown quantum states with any non-trivial…
Non-existence of invariant EPR correlation for two qudits, d>2
Shengshi Pang, Shengjun Wu, Marek Zukowski
The two qubit (spin 1/2) singlet state has invariant perfect EPR correlations: if two observers measure {\em any} identical observables the results are always perfectly (anti-)corr…
Quantum measurements with preselection and postselection
Xuanmin Zhu, Yuxiang Zhang, Shengshi Pang +3
We study quantum measurement with preselection and postselection, and derive the precise expressions of the measurement results without any restriction on the coupling strength bet…