Massive quantum systems as interfaces of quantum mechanics and gravity

S Bose, I Fuentes, AA Geraci, SM Khan, S Qvarfort… - Reviews of Modern …, 2025 - APS
The traditional view from particle physics is that quantum-gravity effects should become
detectable only at extremely high energies and small length scales. Owing to the significant …

Simultaneous ground-state cooling of two mechanical modes of a levitated nanoparticle

J Piotrowski, D Windey, J Vijayan… - Nature Physics, 2023 - nature.com
The quantum ground state of a massive mechanical system is a step** stone for
investigating macroscopic quantum states and building high fidelity sensors. With the recent …

Cavity-mediated long-range interactions in levitated optomechanics

J Vijayan, J Piotrowski, C Gonzalez-Ballestero… - Nature Physics, 2024 - nature.com
The ability to engineer cavity-mediated interactions has emerged as a powerful tool for the
generation of non-local correlations and the investigation of non-equilibrium phenomena in …

Simultaneous cavity cooling of all six degrees of freedom of a levitated nanoparticle

A Pontin, H Fu, M Toroš, TS Monteiro, PF Barker - Nature Physics, 2023 - nature.com
Controlling the motional degrees of isolated, single nanoparticles trapped within optical
fields in a high vacuum are seen as ideal candidates for exploring the limits of quantum …

Ultrahigh quality factor of a levitated nanomechanical oscillator

L Dania, DS Bykov, F Goschin, M Teller, A Kassid… - Physical Review Letters, 2024 - APS
A levitated nanomechanical oscillator under ultrahigh vacuum is highly isolated from its
environment. It has been predicted that this isolation leads to very low mechanical …

Fast quantum interference of a nanoparticle via optical potential control

L Neumeier, MA Ciampini, O Romero-Isart… - Proceedings of the …, 2024 - pnas.org
We introduce and theoretically analyze a scheme to prepare and detect non-Gaussian
quantum states of an optically levitated particle via the interaction with light pulses that …

Macroscopic quantum superpositions via dynamics in a wide double-well potential

M Roda-Llordes, A Riera-Campeny, D Candoli… - Physical Review Letters, 2024 - APS
We present an experimental proposal for the rapid preparation of the center of mass of a
levitated particle in a macroscopic quantum state, that is a state delocalized over a length …

Vacuum levitation and motion control on chip

B Melo, M T. Cuairan, GFM Tomassi, N Meyer… - Nature …, 2024 - nature.com
By isolating from the environment and precisely controlling mesoscopic objects, levitation in
vacuum has evolved into a versatile technique that has already benefited diverse scientific …

Mechanical detection of nuclear decays

J Wang, TW Penny, J Recoaro, B Siegel, YH Tseng… - Physical Review Letters, 2024 - APS
We report the detection of individual nuclear α decays through the mechanical recoil of the
entire micron-sized particle in which the decaying nuclei are embedded. Momentum …

State expansion of a levitated nanoparticle in a dark harmonic potential

E Bonvin, L Devaud, M Rossi, A Militaru, L Dania… - Physical Review Letters, 2024 - APS
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 …