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arXiv · 1510.02916

Quantifying coherence of Gaussian states

Jianwei Xu
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Abstract

Coherence arises from the superposition principle and plays a key role in quantum mechanics. Recently, Baumgratz et al. [T. Baumgratz, M. Cramer, and M. B. Plenio, Phys. Rev. Lett. 113, 140401 (2014)] established a rigorous framework for quantifying the coherence of finite dimensional quantum states. In this work we provide a framework for quantifying the coherence of Gaussian states and explicitly give a coherence measure based on the relative entropy.

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Jianwei Xu. 2015-10-10. Quantifying coherence of Gaussian states. https://doi.org/10.1103/physreva.93.032111

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