Quantum gases in optical boxes

N Navon, RP Smith, Z Hadzibabic - Nature Physics, 2021 - nature.com
Quantum atomic and molecular gases are flexible systems for studies of fundamental many-
body physics. They have traditionally been produced in harmonic electromagnetic traps and …

Thermography of the superfluid transition in a strongly interacting Fermi gas

Z Yan, PB Patel, B Mukherjee, CJ Vale, RJ Fletcher… - Science, 2024 - science.org
Heat transport can serve as a fingerprint identifying different states of matter. In a normal
liquid, a hotspot diffuses, whereas in a superfluid, heat propagates as a wave called “second …

Cold-Atom Elevator: From Edge-State Injection to the Preparation of Fractional Chern Insulators

B Wang, M Aidelsburger, J Dalibard, A Eckardt… - Physical review …, 2024 - APS
Optical box traps offer new possibilities for quantum-gas experiments. Building on their
exquisite spatial and temporal control, we propose to engineer system-reservoir …

Emergence of isotropy and dynamic scaling in 2D wave turbulence in a homogeneous Bose gas

M Gałka, P Christodoulou, M Gazo, A Karailiev… - Physical Review Letters, 2022 - APS
We realize a turbulent cascade of wave excitations in a homogeneous 2D Bose gas and
probe on all relevant time and length scales how it builds up from small to large momenta …

Universal equation of state for wave turbulence in a quantum gas

LH Dogra, G Martirosyan, TA Hilker, JAP Glidden… - Nature, 2023 - nature.com
Boyle's 1662 observation that the volume of a gas is, at constant temperature, inversely
proportional to pressure, offered a prototypical example of how an equation of state (EoS) …

First and second sound in a compressible 3D Bose fluid

TA Hilker, LH Dogra, C Eigen, JAP Glidden, RP Smith… - Physical Review Letters, 2022 - APS
The two-fluid model is fundamental for the description of superfluidity. In the nearly
incompressible liquid regime, it successfully describes first and second sound …

An exact one-particle theory of bosonic excitations: from a generalized Hohenberg–Kohn theorem to convexified N-representability

J Liebert, C Schilling - New Journal of Physics, 2023 - iopscience.iop.org
Abstract Motivated by the Penrose–Onsager criterion for Bose–Einstein condensation we
propose a functional theory for targeting low-lying excitation energies of bosonic quantum …

Beliaev dam** of gapped excitations in a two-component Bose-Einstein condensate

R Wu - Physical Review A, 2024 - APS
We investigate the Beliaev dam** of gapped excitations in a homogenous two-component
Bose-Einstein condensate with Rabi coupling and find different dam** behavior of …

Tracing the nonlinear formation of an interfacial wave spectral cascade from one to few to many

S Gregory, S Schiattarella, VS Barroso… - arxiv preprint arxiv …, 2024 - arxiv.org
Far-from-equilibrium phenomena unveil the intricate principles of complex systems,
including snowflake growth and fluid turbulence, with broad applications ranging from …

Tuneable homogeneous Bose fluids close to and far from equilibrium

L Dogra - 2024 - repository.cam.ac.uk
This thesis describes experiments with an ultracold weakly interacting Bose gas of 39 K in a
3-dimensional homogeneous optical trap. We expound three phenomena in different …