Perturbative nonlinear feedback forces for optical levitation experiments
Quantum Physics
2024-03-19 v1
Abstract
Feedback control can be used to generate well-determined nonlinear effective potentials in an optical trap, a goal whose applications may range from non-equilibrium thermodynamics to the generation of non-Gaussian states of mechanical motion. Here, we investigate the action of an effective feedback-generated quartic potential on a levitated nanoparticle within the perturbation regime. The effects of feedback delay are discussed and predictions from the perturbation theory of a Brownian particle subjected to a quartic anharmonicity are experimentally verified.
Cite
@article{arxiv.2309.15976,
title = {Perturbative nonlinear feedback forces for optical levitation experiments},
author = {Oscar Kremer and Daniel Tandeitnik and Rafael Mufato and Igor Califrer and Breno Calderoni and Felipe Calliari and Bruno Melo and Guilherme Temporão and Thiago Guerreiro},
journal= {arXiv preprint arXiv:2309.15976},
year = {2024}
}