3 papers
cond-mat.mes-hall2011
Decoherence and the retrieval of lost information
Yin Ye, Yunshan Cao, Xin-Qi Li +1
We found that in contrast with the common premise, a measurement on the environment of an open quantum system can {\em reduce} its decoherence rate. We demonstrate it by studying a…
quant-ph2011
Undetectable quantum transfer through a continuum
Jing Ping, Yin Ye, Xin-Qi Li +2
We demonstrate that a quantum particle, initially prepared in a quantum well, can propagate through a reservoir with a continuous spectrum and reappear in a distant well without be…
cond-mat.mes-hall2010
Quantum Efficiency of Charge Qubit Measurements Using a Single Electron Transistor
Yin Ye, Jing Ping, HuJun Jiao +2
The quantum efficiency, which characterizes the quality of information gain against information loss, is an important figure of merit for any realistic quantum detectors in the gra…