Physics of our days: Cooling and thermometry of atomic Fermi gases

R Onofrio - Physics-Uspekhi, 2016 - iopscience.iop.org
We review the status of cooling techniques aimed at achieving the deepest quantum
degeneracy for atomic Fermi gases. We first discuss some physics motivations, providing a …

Mediated interactions between Fermi polarons and the role of impurity quantum statistics

C Baroni, B Huang, I Fritsche, E Dobler, G Anich… - Nature Physics, 2024 - nature.com
The notion of quasi-particles is essential for understanding the behaviour of complex many-
body systems. A prototypical example of a quasi-particle is a polaron, formed by an impurity …

Laser cooling of optically trapped molecules

L Anderegg, BL Augenbraun, Y Bao, S Burchesky… - Nature Physics, 2018 - nature.com
Ultracold molecules are ideal platforms for many important applications, ranging from
quantum simulation,,,–and quantum information processing, to precision tests of …

Repulsive Fermi Polarons in a Resonant Mixture of Ultracold Atoms

F Scazza, G Valtolina, P Massignan, A Recati, A Amico… - Physical review …, 2017 - APS
We employ radio-frequency spectroscopy to investigate a polarized spin mixture of ultracold
Li 6 atoms close to a broad Feshbach scattering resonance. Focusing on the regime of …

Site-Resolved Imaging of Fermionic in an Optical Lattice

MF Parsons, F Huber, A Mazurenko, CS Chiu… - Physical review …, 2015 - APS
We demonstrate site-resolved imaging of individual fermionic Li 6 atoms in a single layer of
a 3D optical lattice. To preserve the density distribution during fluorescence imaging, we …

Sub-Doppler Cooling and Compressed Trapping of YO Molecules at Temperatures

S Ding, Y Wu, IA Finneran, JJ Burau, J Ye - Physical Review X, 2020 - APS
Complex molecular structure demands customized solutions to laser cooling by extending
its general set of principles and practices. Compared with other laser-cooled molecules …

-Enhanced Imaging of Molecules in an Optical Trap

LW Cheuk, L Anderegg, BL Augenbraun, Y Bao… - Physical review …, 2018 - APS
We report on nondestructive imaging of optically trapped calcium monofluoride molecules
using in situ Λ-enhanced gray molasses cooling. 200 times more fluorescence is obtained …

Imaging and addressing of individual fermionic atoms in an optical lattice

GJA Edge, R Anderson, D Jervis, DC McKay, R Day… - Physical Review A, 2015 - APS
We demonstrate fluorescence microscopy of individual fermionic potassium atoms in a 527-
nm-period optical lattice. Using electromagnetically induced transparency cooling on the …

Second sound attenuation near quantum criticality

X Li, X Luo, S Wang, K Xie, XP Liu, H Hu, YA Chen… - Science, 2022 - science.org
Second sound attenuation, a distinctive dissipative hydrodynamic phenomenon in a
superfluid, is crucial for understanding superfluidity and elucidating critical phenomena …

Josephson effect in fermionic superfluids across the BEC-BCS crossover

G Valtolina, A Burchianti, A Amico, E Neri, K Xhani… - Science, 2015 - science.org
The Josephson effect is a macroscopic quantum phenomenon that reveals the broken
symmetry associated with any superfluid state. Here we report on the observation of the …