Abstract
The complementarity (upper bound) and uncertainty relations (lower bound) of the coherence via skew information under mutually unbiased bases (MUBs) are studied. The complementarity relation for the geometric measure of coherence is also obtained based on the relation between the coherence via skew information and the geometric measure of coherence. As applications, two tighter upper bounds are presented on the minimum error probabilities that discriminate a set of pure states with the least square measurement, which improve the results of Xiong et al. (Phys Rev A 98:032324, 2018).
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Acknowledgements
This work is supported by NSFC under Nos 11761073, 11675113 and 12075159, Beijing Municipal Commission of Education (KZ201810028042), Beijing Natural Science Foundation (Grant No. Z190005); Academy for Multidisciplinary Studies, Capital Normal University; Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China (No. SIQSE202001).
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Sheng, YH., Zhang, J., Tao, YH. et al. Applications of quantum coherence via skew information under mutually unbiased bases. Quantum Inf Process 20, 82 (2021). https://doi.org/10.1007/s11128-021-03017-z
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DOI: https://doi.org/10.1007/s11128-021-03017-z