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 …

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 …

Observation of magnetic solitons in two-component Bose-Einstein condensates

A Farolfi, D Trypogeorgos, C Mordini, G Lamporesi… - Physical Review Letters, 2020 - APS
We experimentally investigate the dynamics of spin solitary waves (magnetic solitons) in a
harmonically trapped, binary superfluid mixture. We measure the in situ density of each …

Λ-enhanced grey molasses on the D2 transition of Rubidium-87 atoms

S Rosi, A Burchianti, S Conclave, DS Naik, G Roati… - Scientific reports, 2018 - nature.com
Laser cooling based on dark states, ie states decoupled from light, has proven to be effective
to increase the phase-space density of cold trapped atoms. Dark-states cooling requires …

Design and characterization of a compact magnetic shield for ultracold atomic gas experiments

A Farolfi, D Trypogeorgos, G Colzi, E Fava… - Review of Scientific …, 2019 - pubs.aip.org
We report on the design, construction, and performance of a compact magnetic shield that
facilitates a controlled, low-noise environment for experiments with ultracold atomic gases …

magic wavelength tweezers for scaling atom arrays

MM Aliyu, L Zhao, XQ Quek, KC Yellapragada… - Physical Review …, 2021 - APS
Efficient trapping and detection of single atoms in optical tweezers are important for realizing
atom arrays, a promising platform for quantum simulation and quantum information …

Manipulation of an elongated internal Josephson junction of bosonic atoms

A Farolfi, A Zenesini, R Cominotti, D Trypogeorgos… - Physical Review A, 2021 - APS
We report on the experimental characterization of a spatially extended Josephson junction
realized with a coherently coupled two-spin-component Bose-Einstein condensate. The …

Motional-ground-state cooling outside the Lamb-Dicke regime

Y Yu, NR Hutzler, JT Zhang, LR Liu, JD Hood… - Physical Review A, 2018 - APS
We report Raman sideband cooling of a single sodium atom to its three-dimensional
motional ground state in an optical tweezer. Despite a large Lamb-Dicke parameter, high …

Steady-state magneto-optical trap with 100-fold improved phase-space density

S Bennetts, CC Chen, B Pasquiou, F Schreck - Physical review letters, 2017 - APS
We demonstrate a continuously loaded Sr 88 magneto-optical trap (MOT) with a steady-state
phase-space density of 1.3 (2)× 10− 3. This is 2 orders of magnitude higher than reported in …