# The n-th Decay Rate of Coherence for Bell-diagonal States Under Quantum Channels

@article{Huang2020TheND, title={The n-th Decay Rate of Coherence for Bell-diagonal States Under Quantum Channels}, author={Huaijing Huang and Zhaoqi Wu and Shao-Ming Fei}, journal={International Journal of Theoretical Physics}, year={2020}, volume={59}, pages={2912 - 2923} }

We study the degree to which the coherence of quantum states is affected by noise. We give the definition of the n-th decay rate and investigate the coherence of Bell-diagonal states under n iterations of channels. We derive explicit formulas of the n-th decay rates based on l1 norm of coherence, relative entropy of coherence and skew information-based coherence. It is found that the larger n is, the faster the n-th decay rate decreases as the parameter p of Bell-diagonal states increases…

## One Citation

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