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arXiv · 1710.11373

Coherence distribution in multipartite systems

Zhengjun Xi
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Abstract

This paper examines the coherence in multipartite systems. We first discuss the distribution of total coherence in a given multipartite quantum state into discord between subsystems and coherent dissonance in each individual subsystem, using the relative entropy as a distance measure. Then we give some trade-off relations between various types of coherence and discord within a bipartite system,and extend these results to the multipartite setting. Finally, the change of coherence in entanglement distribution is studied.

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Zhengjun Xi. 2017-10-31. Coherence distribution in multipartite systems. https://doi.org/10.1088/1751-8121%2Faabb23

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