We implement an all-electrical controller for 3D feedback cooling of an optically levitated
nanoparticle capable of reaching subkelvin temperatures for the center-of-mass motion. The …

We spatially expand and subsequently contract the motional thermal state of a levitated
nanoparticle using a hybrid trap** scheme. The particle's center-of-mass motion is …

We study the effective stochastic dynamics of a semiclassical probe induced by linear
optomechanical interactions with a quantum oscillator. To do so, we introduce path integrals …

The superposition of frequency-shifted Laguerre-Gauss modes can produce a rotating
saddlelike intensity profile. When spinning fast enough, the optical forces produced by this …

We demonstrate that a set of microfabricated electrodes can be coupled to a commercial
optical tweezers device, implementing a hybrid electro-optical trap with multiple …

Abstract Recent experimental breakthroughs [1–4] have brought levitated optome-chanics
under the limelight as a compelling candidate for probing the laws of Nature at the interface …

Schmitt Kremer, Oscar; Penello Temporão, Guilherme; Barbosa dos Santos Guerreiro, Thiago.
Teoria de controle aplicada à partículas levitadadas opticamente. Rio de Janeiro, 2024. 111p …

Abstract Califrer, Igor José; Guerreiro, Thiago Barbosa dos Santos (Advisor). Low intensity
light meets feedback cooled levitated nanoparticles. Rio de Janeiro, 2024. 99p. Dissertação …

The macroscopic levitation and zero-resistance characteristics exhibited by
superconductivity are truly impressive. However, achieving and manipulating levitation at …