Nonlinear-dissipation-induced Entanglement of Coupled Nonlinear Oscillators

Abstract

The quantum dynamics of two weakly coupled nonlinear oscillators is analytically and numerically investigated in the context of nonlinear dissipation. The latter facilitates the creation and preservation of non-classical steady states. Starting from a microscopic description of two oscillators individually interacting with their dissipative environments, it is found that in addition to energy relaxation, dephasing arises due to the mutual coupling. Using the negativity as an entanglement measure, it is shown that the coupling entangles the oscillators in the long-time limit. For finite temperatures, entanglement sudden death and rebirth are observed.

4.5 pages, 3 figures; minor revisions, accepted for publication in PRA

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Cited by in corpus (5)

• Entangled-state generation and Bell inequality violations in nanomechanical resonators
• Nonlinear phononics using atomically thin membranes
• Engineering entanglement between resonators by hot environment
• Dynamics of coupled vibration modes in a quantum non-linear mechanical resonator
• Entanglement Dynamics of Quantum Oscillators Nonlinearly Coupled to Thermal Environments