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arXiv · 1907.02458

Advanced Alicki-Fannes-Winter method for energy-constrained quantum systems and its use

M. E. Shirokov
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Abstract

We describe an universal method for quantitative continuity analysis of entropic characteristics of energy-constrained quantum systems and channels. It gives asymptotically tight continuity bounds for basic characteristics of quantum systems of wide class (including multi-mode quantum oscillators) and channels between such systems under the energy constraint. The main application of the proposed method is the advanced version of the uniform finite-dimensional approximation theorem for basic capacities of energy-constrained quantum channels.

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M. E. Shirokov. 2019-07-04. Advanced Alicki-Fannes-Winter method for energy-constrained quantum systems and its use. https://doi.org/10.1007/s11128-020-2581-2

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