Three qubits in a symmetric environment: dissipatively generated asymptotic entanglement

Abstract

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.

18 pages, accepted to Annals of Physics

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Cited by in corpus (4)

• Avoiding dissipation in a system of three quantum harmonic oscillators
• Gaussian entanglement induced by an extended thermal environment
• Entanglement dynamics of an arbitrary number of moving qubits in a common environment
• A heat bath can generate all classes of three-qubit entanglement