Entanglement sudden death in qubit-qutrit systems under depolarizing noise

Details Entanglement sudden death in qubit-qutrit systems under depolarizing noise Entanglement sudden death in qubit-qutrit systems under depolarizing noise

2010-12-05

arxiv.org/abs/1012.1028v1

Physics

Quantum Physics

Pages 11, Figures 6

Scientific paper

I study the effects of decoherence on some qubit-qutrit systems under the influence of global, collective, local and multilocal depolarizing noise. I show that the entanglement sudden death (ESD) can be avoided under particular situations. The conjecture that ESD occurs in all bipartite states is questioned. I show that a critical point exists at which all the states are equally entangled. Furthermore, no ESD occurs when only the qubit is coupled to its local environment.

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