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arXiv · 1206.3119

Local channels preserving maximal entanglement or Schmidt number

Yu Guo·Zhaofang Bai·Shuanping Du
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Abstract

Maximal entanglement and Schmidt number play an important role in various quantum information tasks. In this paper, it is shown that a local channel preserves maximal entanglement state(MES) or preserves pure states with Schmidt number $r$($r$ is a fixed integer) if and only if it is a local unitary operation.

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Yu Guo, Zhaofang Bai, Shuanping Du. 2012-06-14. Local channels preserving maximal entanglement or Schmidt number. https://doi.org/10.1007/s10773-013-1688-y

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