English

Distinguishability of the Bell states

Quantum Physics 2009-11-07 v2

Abstract

More than two multipartite orthogonal states cannot always be discriminated (with certainty) if only local operations and classical communication (LOCC) are allowed. Using an existing inequality among the measures of entanglement, we show that any three Bell states cannot be discriminated by LOCC. Exploiting the inequality, we calculate the distillable entanglement of a certain class of (4\otimes 4) mixed states.

Keywords

Cite

@article{arxiv.quant-ph/0106148,
  title  = {Distinguishability of the Bell states},
  author = {Sibasish Ghosh and Guruprasad Kar and Anirban Roy and Aditi Sen De and Ujjwal Sen},
  journal= {arXiv preprint arXiv:quant-ph/0106148},
  year   = {2009}
}

Comments

3 Pages Latex, references added, minor changes