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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
|
Vol.8 No.10
November 2008 |
Entanglement of formation from optimal decomposition
(pp0965-0976)
Lin
Chen and Yi-Xin. Chen
doi:
https://doi.org/10.26421/QIC8.10-6
Abstracts: We have recently shown that
for the special case of a bipartite system with binary inputs and
outputs there exist equalities in local theories which are violated by
quantum theory. The amount of white noise tolerated by these equalities
are twice that of inequalities. In this paper we will first introduce an
inequality in bipartite qutrits systems which, if nonmaximally entangled
state is used instead of maximally entangled state, is violated more
strongly by quantum theory. Hence reproducing the results obtained in
the literature. We will then prove that our equalities in this case are
violated by quantum theory too, and they tolerate much more white noise
than inequalities.
Key words:
foundations of quantum theory; Bell inequality;
non-locality; entanglement; white noise; quantum cryptography |
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