All-electrical cooling of an optically levitated nanoparticle
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 …
nanoparticle capable of reaching subkelvin temperatures for the center-of-mass motion. The …
Hybrid Paul-optical trap with large optical access for levitated optomechanics
We present a hybrid trapping platform that allows us to levitate a charged nanoparticle in
high vacuum using either optical fields, radio-frequency fields, or a combination thereof. Our …
high vacuum using either optical fields, radio-frequency fields, or a combination thereof. Our …
Generation of classical non-Gaussian distributions by squeezing a thermal state into non-linear motion of levitated optomechanics
R Muffato, T Georgescu, J Homans, T Guerreiro… - arXiv preprint arXiv …, 2024 - arxiv.org
We report on an experiment achieving the dynamical generation of non-Gaussian states of
motion of a levitated optomechanical system. We access intrinsic Duffing-like non-linearities …
motion of a levitated optomechanical system. We access intrinsic Duffing-like non-linearities …
Rotational Locking of Charged Microparticles in Quadrupole Ion Traps
Electric quadrupole traps are a leading technology for suspending charged objects ranging
in size from single protons to atomic and molecular ions, and even to nano-and micron-sized …
in size from single protons to atomic and molecular ions, and even to nano-and micron-sized …
Quantum-induced stochastic optomechanical dynamics
PV Paraguassú, L Abrahão… - Journal of the Optical …, 2024 - opg.optica.org
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 …
optomechanical interactions with a quantum oscillator. To do so, we introduce path integrals …
Optimization of static potentials for large delocalization and non-Gaussian quantum dynamics of levitated nanoparticles under decoherence
Levitated nanoparticles provide a controllable and isolated platform for probing fundamental
quantum phenomena at the macroscopic scale. In this work we introduce an optimization …
quantum phenomena at the macroscopic scale. In this work we introduce an optimization …
All-optical saddle trap
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 …
saddlelike intensity profile. When spinning fast enough, the optical forces produced by this …
Diamagnetic micro-chip traps for levitated nanoparticle entanglement experiments
The Quantum Gravity Mediated Entanglement (QGEM) protocol offers a novel method to
probe the quantumness of gravitational interactions at non-relativistic scales. This protocol …
probe the quantumness of gravitational interactions at non-relativistic scales. This protocol …
Pseudospectral method for solving PDEs using Matrix Product States
This research focuses on solving time-dependent partial differential equations (PDEs), in
particular the time-dependent Schr\" odinger equation, using matrix product states (MPS) …
particular the time-dependent Schr\" odinger equation, using matrix product states (MPS) …
High purity two-dimensional levitated mechanical oscillator
In recent years, levitated optomechanics has delivered on the promise of reaching the
motional quantum ground state. An important next milestone of the field would be the …
motional quantum ground state. An important next milestone of the field would be the …