Results 1 to 10 of about 2,308,595 (173)

A conveyor-belt magneto-optical trap of CaF [PDF]

open access: yesNature Communications
Achieving high-density samples of laser-cooled molecules is a critical step toward advancing applications in precision measurements, ultracold chemistry and quantum science.
Scarlett S. Yu   +10 more
doaj   +2 more sources

Geometric Phase Effects in Ultracold Chemical Reactions

open access: yesAtoms, 2019
The role of the geometric phase effect in chemical reaction dynamics has long been a topic of active experimental and theoretical investigations. The topic has received renewed interest in recent years in cold and ultracold chemistry where it was shown ...
Brian K. Kendrick, N. Balakrishnan
doaj   +3 more sources

Ultrafast bimolecular reaction catalysis via engineered nuclear quantum effects in helium nanodroplets [PDF]

open access: yesNature Communications
Nuclear quantum effects (NQEs) fundamentally alter chemical reactivities, particularly those occurring at low temperatures or involving light nuclei. Yet, directly resolving how NQEs influence the ultrafast dynamics of bond formation remains a central ...
Jiaxuan Chen   +14 more
doaj   +2 more sources

Advanced Electron Microscopy of Clusters Grown Inside Superfluid Helium Droplets: Advances, Challenges, and Perspectives

open access: yesSmall Structures
Superfluid helium nanodroplets act as ultracold, nanoscale “cryostats” that enable the synthesis of exceptionally pure metallic, bimetallic, and hybrid nanoparticles with precise control over size and architecture.
Daniel Knez   +3 more
doaj   +2 more sources

Ab initio study of the reactivity of ultracold RbSr + RbSr collisions

open access: yesNew Journal of Physics, 2022
We performed ab initio calculations in order to assess the reactivity of ultracold RbSr $({}^{2}{\Sigma}^{+})$ + RbSr $({}^{2}{\Sigma}^{+})$ collisions occurring on the singlet as well as the triplet potential.
Marijn P Man   +2 more
doaj   +1 more source

Cavity buildup dispersion spectroscopy

open access: yesCommunications Physics, 2021
Cavity-enhanced spectroscopy is used to analyse light–matter interactions in fields such as ultracold chemistry and planetary science but measurement performance can be hampered by nonlinearities and long acquisition times.
Agata Cygan   +5 more
doaj   +1 more source

Fast optical transport of ultracold molecules over long distances

open access: yesNew Journal of Physics, 2022
Optically trapped laser-cooled polar molecules hold promise for new science and technology in quantum information and quantum simulation. Large numerical aperture optical access and long trap lifetimes are needed for many studies, but these requirements ...
Yicheng Bao   +8 more
doaj   +1 more source

Exotic Chemistry with Ultracold Rydberg Atoms

open access: yesCHIMIA, 2016
We review recent experiments carried out with dense (1012 cm–3) ultracold (T = 40 ?K) samples of Cs atoms which have the goal to characterize, by high-resolution spectroscopy, the interactions between Cs atoms, Cs+ ions and electrons that lead ...
Heiner Saßmannshausen   +2 more
doaj   +1 more source

Quantum dynamics of tunneling dominated reactions at low temperatures

open access: yesNew Journal of Physics, 2015
We report a quantum dynamics study of the Li + HF → LiF + H reaction at low temperatures of interest to cooling and trapping experiments. Contributions from non-zero partial waves are analyzed and results show narrow resonances in the energy dependence ...
Jisha Hazra, N Balakrishnan
doaj   +1 more source

Direct Frequency Comb Laser Cooling and Trapping

open access: yesPhysical Review X, 2016
Ultracold atoms, produced by laser cooling and trapping, have led to recent advances in quantum information, quantum chemistry, and quantum sensors. A lack of ultraviolet narrow-band lasers precludes laser cooling of prevalent atoms such as hydrogen ...
A. M. Jayich   +2 more
doaj   +1 more source

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