We discuss the generation of states close to the boundary family of maximally entangled mixed states as defined by the use of concurrence and linear entropy. The coupling of two qubits to a dissipation-affected bosonic mode is able to produce a bipartite state having, for all practical purposes, the entanglement and mixedness properties of one of such boundary states. We thoroughly study the effects that thermal and squeezed characters of the bosonic mode have in such a process and we discuss tolerance to qubit phase-damping mechanisms. The nondemanding nature of the scheme makes it realizable in a matter-light-based physical setup, which we address in some details. © 2009 The American Physical Society.

Campbell S., Paternostro M. (2009). Dissipative scheme to approach the boundary of two-qubit entangled mixed states. PHYSICAL REVIEW A, 79(3) [10.1103/PhysRevA.79.032314].

Dissipative scheme to approach the boundary of two-qubit entangled mixed states

Paternostro M.
Ultimo
Investigation
2009-03-12

Abstract

We discuss the generation of states close to the boundary family of maximally entangled mixed states as defined by the use of concurrence and linear entropy. The coupling of two qubits to a dissipation-affected bosonic mode is able to produce a bipartite state having, for all practical purposes, the entanglement and mixedness properties of one of such boundary states. We thoroughly study the effects that thermal and squeezed characters of the bosonic mode have in such a process and we discuss tolerance to qubit phase-damping mechanisms. The nondemanding nature of the scheme makes it realizable in a matter-light-based physical setup, which we address in some details. © 2009 The American Physical Society.
12-mar-2009
Campbell S., Paternostro M. (2009). Dissipative scheme to approach the boundary of two-qubit entangled mixed states. PHYSICAL REVIEW A, 79(3) [10.1103/PhysRevA.79.032314].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/613273
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