Work

Nonequilibrium entanglement between levitated masses under optimal control

Year: 2024

Type: preprint

Abstract: We present a protocol that maximizes unconditional entanglement generation between two masses interacting directly through $1/r^{n}$ potential. The protocol combines optimal quantum control of continuously measured masses with their non-equilibrium dynamics, driven by a time-dependent interaction strength. Applied to a pair of optically trapped sub-micron particles coupled via electrostatic interaction, our protocol enables unconditional entanglement generation at the fundamental limit of the conditional state and with an order of magnitude smaller interaction between the masses compared to the existing steady-state approaches.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2408.06251

Authors: Poddubny, Alexander N., Winkler, Klemens, Stickler, Benjamin A., Delić, Uroš, Aspelmeyer, Markus, Zasedatelev, Anton V.

Institutions: Weizmann Institute of Science, Vienna Center for Quantum Science and Technology, Universität Ulm, Institute for Quantum Optics and Quantum Information Innsbruck, Aalto University

Language: English

Topic: Mechanical and Optical Resonators

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Deutsche Forschungsgemeinschaft, Austrian Science Fund

Awards: G4034994633, G434337789, G4495373907, Cavity mediated interactions between levitated particles, LOng Range ENtanglement between charged levitated particles, Kontrolle makromechanischer Quantensysteme

OpenAlex ID: W4402387422

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