期刊
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
卷 57, 期 12, 页码 3682-3688出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-018-3881-5
关键词
Weak measurement; Quantum measurement reversal; Decoherence suppression; Phase decoherence
资金
- National Natural Science Foundation of China [61605019, 61505053, 11547258]
- China Postdoctoral Science Foundation [2017M622582]
Decoherence suppression from disturbance of the environment is an essential task in quantum information processing. We investigate decoherence suppression of a qubit system interacting with a heat bath with phase decoherence by employing the weak measurement (WM) and quantum measurement reversal (QMR) operation. We show explicitly that the qubit decoherence can be efficiently completely suppressed by means of the combination WM and QMR, which is independent of the form of the spectral density of the reservoir and the form of initial input state.
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