Universality of Sudden Death of Entanglement

Details Universality of Sudden Death of Entanglement Universality of Sudden Death of Entanglement

2008-10-31

arxiv.org/abs/0810.5739v3

Quantum Information & Computation, v. 11, p. 0677-0694, (2011)

Physics

Quantum Physics

Published version

Scientific paper

We present a constructive argument to demonstrate the universality of the sudden death of entanglement in the case of two non-interacting qubits, each of which generically coupled to independent Markovian environments at zero temperature. Conditions for the occurrence of the abrupt disappearance of entanglement are determined and, most importantly, rigorously shown to be almost always satisfied: Dynamical models for which the sudden death of entanglement does not occur are seen to form a highly idealized zero-measure subset within the set of all possible quantum dynamics.

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