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arXiv · 1107.4457

Quantum Discord: A Dynamic Approach in Geometric Picture

Mingjun Shi·Fengjian Jiang·Jiangfeng Du
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Abstract

We present a dynamic approach to study the quantum discord and classical correlation. By local filtering operation, the evaluation of quantum discord is closely related to quantum channel and channel capacity. As a consequence, the traditional optimization over horizontal-or-vertical von Neumann measurements is replaced by that over horizontal-and-vertical three-element POVM measurement, from which more rigorous results of quantum discord are obtained.

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Mingjun Shi, Fengjian Jiang, Jiangfeng Du. 2011-07-22. Quantum Discord: A Dynamic Approach in Geometric Picture. https://arxiv.org/abs/1107.4457

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