Geometry of Entanglement Sudden Death: Explicit Examples

Details Geometry of Entanglement Sudden Death: Explicit Examples Geometry of Entanglement Sudden Death: Explicit Examples

2008-11-20

arxiv.org/abs/0811.3344v1

Physics

Quantum Physics

Contribution written to the Procceedings of 5th Vaxjo Conference on Foundations of Probability and Physics

Scientific paper

10.1063/1.3109968

In open quantum systems, entanglement can vanish faster than coherence. This phenomenon is usually called sudden death of entanglement. In [M. O. Terra Cunha, New J. Phys. 9, 237 (2007)] a geometrical explanation was offered and a classification of all possible scenarios was given. Some classes were exemplified, but it was still an open question whether there were examples for the other ones. This was solved in [R.C. Drumond and M.O. Terra Cunha, arXiv:0809.4445v1]. Here we briefly review the problem, state our results in a precise way, discuss the generality of the approach, and add some speculative desirable generalizations.

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