Stabilizing entanglement in two-mode Gaussian states

• URL: http://arxiv.org/abs/2007.04004v2
• Date: Tue, 8 Sep 2020 21:01:55 GMT
• Title: Stabilizing entanglement in two-mode Gaussian states
• Authors: Tomasz Linowski, Clemens Gneiting, {\L}ukasz Rudnicki
• Abstract summary: We analyze the stabilizability of entangled two-mode Gaussian states in three benchmark dissipative models. All three models exhibit a tradeoff between state entanglement and purity in the entanglement maximizing limit.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We analyze the stabilizability of entangled two-mode Gaussian states in three benchmark dissipative models: local damping, dissipators engineered to preserve two-mode squeezed states, and cascaded oscillators. In the first two models, we determine principal upper bounds on the stabilizable entanglement, while in the last model, arbitrary amounts of entanglement can be stabilized. All three models exhibit a tradeoff between state entanglement and purity in the entanglement maximizing limit. Our results are derived from the Hamiltonian-independent stabilizability conditions for Gaussian systems. Here, we sharpen these conditions with respect to their applicability.

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