Abstract
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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This work is financially supported by the National Natural Science Foundation of China (Grants No. 61605019, No. 61505053 and No. 11547258), and the China Postdoctoral Science Foundation (Grant No. 2017M622582),
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Wang, Q., Tang, JS., He, Z. et al. Decoherence Suppression in Phase Decoherence Environment Using Weak Measurement and Quantum Measurement Reversal. Int J Theor Phys 57, 3682–3688 (2018). https://doi.org/10.1007/s10773-018-3881-5
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DOI: https://doi.org/10.1007/s10773-018-3881-5