Title : ( Robustness of entanglement for Bell decomposable states )
Authors: Seyed Javad Akhtarshenas , M. A. Jafarizadeh ,
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Abstract
We propose a simple geometrical approach for finding robustness of entanglement for Bell decomposable states of two-qubit quantum systems. It is shown that for these states robustness is equal to the concurrence. We also present an analytical expression for two separable states that wipe out all entanglement of these states. Random robustness of these states is also obtained. We also obtain robustness of a class of states obtained from Bell decomposable states via some special local operations and classical communications (LOCC).
Keywords
, Quantum entanglement, Robustness of entanglement, Bell-diagonal states
@article{paperid:1064790,
author = {Akhtarshenas, Seyed Javad and M. A. Jafarizadeh},
title = {Robustness of entanglement for Bell decomposable states},
journal = {European Physical Journal D},
year = {2003},
volume = {25},
number = {3},
month = {September},
issn = {1434-6060},
pages = {293--298},
numpages = {5},
keywords = {Quantum entanglement; Robustness of entanglement; Bell-diagonal states},
}
%0 Journal Article
%T Robustness of entanglement for Bell decomposable states
%A Akhtarshenas, Seyed Javad
%A M. A. Jafarizadeh
%J European Physical Journal D
%@ 1434-6060
%D 2003
