Chinese Optics Letters, 2017, 15 (5): 052701, Published Online: Jul. 23, 2018  

Freezing quantum coherence with weak measurement Download: 757次

Author Affiliations
1 Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Department of Physics, Qufu Normal University, Qufu 273165, China
2 Department of Physics and Information Engineering, Jining University, Qufu 273155, China
Abstract
We show how to optimally protect quantum states and freeze coherence under incoherent channels using a quantum weak measurement and quantum measurement reversal. In particular, we present explicit formulas for the conditions for freezing quantum coherence in a given quantum state.

Lianwu Yang, Yunjie Xia. Freezing quantum coherence with weak measurement[J]. Chinese Optics Letters, 2017, 15(5): 052701.

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