4.6 Article

Spectral conditions for entanglement witnesses versus bound entanglement

期刊

PHYSICAL REVIEW A
卷 80, 期 4, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.80.042314

关键词

information theory; quantum entanglement

资金

  1. Polish Ministry of Science and Higher Education [3004/B/H03/2007/33]
  2. Polish Research Network Laboratory of Physical Foundations of Information Processing

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It is shown that entanglement witnesses constructed via the family of spectral conditions are decomposable, i.e., cannot be used to detect bound entanglement. It supports several observations that bound entanglement reveals highly nonspectral features.

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