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Bipartite entanglement induced by classically-constrained quantum dissipative dynamics

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  • Budini, Adrián A.

Abstract

The properties of some complex many body systems can be modeled by introducing in the dissipative dynamics of each single component a set of kinetic constraints that depend on the state of the neighbor systems. Here, we characterize this kind of dynamics for two quantum systems whose independent dissipative evolutions are defined by a Lindblad equation. The constraints are introduced through a set of projectors that restrict the action of each single dissipative Lindblad channel to the state of the other system. Conditions that guarantee a classical interpretation of the kinetic constraints are found. The generation and evolution of entanglement is studied for two optical qubits systems. Classically constrained dissipation leads to a stationary state whose degree of entanglement depends on the initial state. Nevertheless, independently of the initial conditions, a maximal entangled state is generated when both systems are subjected to the action of local Hamiltonian fields that do not commutate with the constraints. The underlying physical mechanism is analyzed in detail.

Suggested Citation

  • Budini, Adrián A., 2013. "Bipartite entanglement induced by classically-constrained quantum dissipative dynamics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(19), pages 4638-4651.
    • Handle: RePEc:eee:phsmap:v:392:y:2013:i:19:p:4638-4651
    DOI: 10.1016/j.physa.2013.06.002
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