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arXiv:2408.07492 · Physical Review Research

Steady-state entanglement of interacting masses in free space through optimal feedback control

Klemens Winkler, Anton V. Zasedatelev, Benjamin A. Stickler, Uroš Delić, Andreas Deutschmann, Markus Aspelmeyer

Published May 12, 2025• 5 citations
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Abstract

We develop a feedback strategy based on optimal quantum feedback control for Gaussian systems to maximize the likelihood of steady-state entanglement detection between two directly interacting masses. We employ linear quadratic Gaussian control to engineer the phase-space dynamics of the two masses and propose Einstein-Podolsky-Rosen-type variance minimization constraints for the feedback to facilitate unconditional entanglement generation. This scheme allows for stationary entanglement in parameter regimes where strategies based on total energy minimization () would fail.

DOI
10.1103/hxc8-fxcb

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