Results 41 to 50 of about 7,077 (196)
Magneto-optical trapping of diatomic molecules
, 2012 The development of the magneto-optical trap revolutionized the fields of atomic and quantum physics by providing a simple method for the rapid production of ultracold, trapped atoms.
Collopy, Alejandra L. +5 more
core +1 more source
A Model for Scattering with Proliferating Resonances: Many Coupled Square Wells [PDF]
, 2018 We present a multichannel model for elastic interactions, comprised of an arbitrary number of coupled finite square-well potentials, and derive semi-analytic solutions for its scattering behavior.
Hazzard, Kaden R. A. +2 more
core +3 more sources
Manipulating scattering of ultracold atoms with light-induced dissipation
, 2013 Recently it has been shown that pairs of atoms can form metastable bonds due to non-conservative forces induced by dissipation [Lemeshko&Weimer, Nature Comm. 4, 2230 (2013)]. Here we study the dynamics of interaction-induced coherent population trapping -
Lemeshko, Mikhail
core +2 more sources
Laser slowing of CaF molecules to near the capture velocity of a molecular MOT [PDF]
, 2016 Laser slowing of CaF molecules down to the capture velocity of a magneto-optical trap (MOT) for molecules is achieved. Starting from a two-stage buffer gas beam source, we apply frequency-broadened "white-light" slowing and observe approximately 6x10^4 ...
Anderegg, Loic +9 more
core +4 more sources
Ultracold controlled chemistry
Physics, 2010 Bound by the Coulomb interaction forces alone, atomic nuclei and electrons combine to form an incredible variety of molecular systems. When molecules react, they undergo chemical transformations leading to rearrangement of atoms within molecules or transfer of atoms between molecules.
openaire +2 more sources
Advanced Science, EarlyView.This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong +5 more
wiley +1 more source
Geometric phase effects in the ultracold D + HD D + HD and D + HD H + D2 reactions
New Journal of Physics, 2016 The results of accurate quantum reactive scattering calculations for the D + HD( v = 4, j = 0) $\to $ D + HD( $v^{\prime} $ , $j^{\prime} $ ), D + HD( v = 4, j = 0) $\to $ H + D _2 ( $v^{\prime} $ , $j^{\prime} $ ) and H + D _2 ( v = 4, j = 0) $\to
B K Kendrick +2 more
doaj +1 more source
Matter-antimatter rearrangements using the R-matrix method
Frontiers in Physics, 2023 Antihydrogen atoms, H―, are now routinely created and can be stored for long enough to allow comparison with ordinary matter. A major goal of these efforts is to test potential physics beyond the Standard Model.
Elliott Kasoar +3 more
doaj +1 more source
Universal model for exoergic bimolecular reactions and inelastic processes
, 2010 From a rigorous multichannel quantum-defect formulation of bimolecular processes, we derive a fully quantal and analytic model for the total rate of exoergic bimolecular reactions and/or inelastic processes that is applicable over a wide range of ...
Bo Gao +3 more
core +1 more source
Low-temperature chemistry using the R-matrix method [PDF]
, 2016 Techniques for producing cold and ultracold molecules are enabling the study of chemical reactions and scattering at the quantum scattering limit, with only a few partial waves contributing to the incident channel, leading to the observation and even ...
McKemmish, Laura K. +2 more
core +2 more sources