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Hybrid direct state tomography by weak value
Xuanmin Zhu, Qun Wei, Lixia Liu +1
Compared with the conventional quantum state tomography (QST), the direct state tomography (DST) using weak value is easily manipulated in experiments. However, the efficiency of t…
The negative probabilities and information gain in weak measurements
Xuanmin Zhu, Qun Wei, Quanhui Liu +1
We study the outcomes in a general measurement with postselection, and derive upper bounds for the pointer readings in weak measurement. Using the idea of weak measurement, we stud…
Results from electrostatic calibrations for measuring the Casimir force in the cylinder-plane geometry
Q. Wei, D. A. R. Dalvit, F. C. Lombardo +2
We report on measurements performed on an apparatus aimed to study the Casimir force in the cylinder-plane configuration. The electrostatic calibrations evidence anomalous behavior…
Edge effects in electrostatic calibrations for the measurement of the Casimir force
Qun Wei, Roberto Onofrio
We have performed numerical simulations to evaluate the effect on the capacitance of finite size boundaries realistically present in the parallel plane, sphere-plane, and cylinder-…
Equilibrium states of a test particle coupled to finite size heat baths
Qun Wei, S. Taylor Smith, Roberto Onofrio
We report on numerical simulations of the dynamics of a test particle coupled to competing Boltzmann heat baths of finite size. After discussing some features of the single bath ca…