Three qubits in a symmetric environment: dissipatively generated asymptotic entanglement

Details Three qubits in a symmetric environment: dissipatively generated asymptotic entanglement Three qubits in a symmetric environment: dissipatively generated asymptotic entanglement

2010-09-07

arxiv.org/abs/1009.1284v1

Physics

Quantum Physics

18 pages, accepted to Annals of Physics

Scientific paper

We study the asymptotic entanglement of three identical qubits under the action of a Markovian open system dynamics that does not distinguish them. We show that by adding a completely depolarized qubit to a special class of two qubit states, by letting them reach the asymptotic state and by finally eliminating the added qubit, can provide more entanglement than by direct immersion of the two qubits within the same environment.

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