Results 21 to 30 of about 7,140 (198)
Precision test of statistical dynamics with state-to-state ultracold chemistry [PDF]
Nature, 2021 Chemical reactions represent a class of quantum problems that challenge both the current theoretical understanding and computational capabilities. Reactions that occur at ultralow temperatures provide an ideal testing ground for quantum chemistry and scattering theories, as they can be experimentally studied with unprecedented control, yet display ...
Yu Liu +6 more
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Formation of molecular oxygen in ultracold O + OH reaction [PDF]
, 2008 We discuss the formation of molecular oxygen in ultracold collisions between hydroxyl radicals and atomic oxygen. A time-independent quantum formalism based on hyperspherical coordinates is employed for the calculations.
Brian K. Kendrick +4 more
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Fast optical transport of ultracold molecules over long distances
New 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
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Quantum dynamics of tunneling dominated reactions at low temperatures
New 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
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Towards Ultracold Organic Chemistry: Prospects of Laser Cooling Large Organic Molecules [PDF]
The Journal of Physical Chemistry Letters, 2020 Ultracold organic chemistry enables studies of reaction dynamics and mechanisms in quantum regime. Access to ultracold molecules hinges on the ability to efficiently scattermultiple photons via quasi-closed cycling transitions and, in practice, is complicated by the complex electronic structure of polyatomic molecules.
Maxim V. Ivanov +3 more
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Direct Frequency Comb Laser Cooling and Trapping
Physical 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
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Spectrum of Feshbach Resonances in NaLi+Na Collisions
Physical Review X, 2023 Collisional resonances of molecules can offer a deeper understanding of interaction potentials and collision complexes, and allow control of chemical reactions.
Juliana J. Park +7 more
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Microscopic derivation of multi-channel Hubbard models for ultracold nonreactive molecules in an optical lattice [PDF]
, 2016 Recent experimental advances in the cooling and manipulation of bialkali dimer molecules have enabled the production of gases of ultracold molecules that are not chemically reactive.
Alam, Shah Saad +4 more
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Buffer gas loaded magneto-optical traps for Yb, Tm, Er and Ho
New Journal of Physics, 2014 Direct loading of lanthanide atoms into magneto-optical traps (MOTs) from a very slow cryogenic buffer gas beam source is achieved, without the need for laser slowing. The beam source has an average forward velocity of 60– $70\;{\rm m}\;{{{\rm s}}^{-1}}$
Boerge Hemmerling +4 more
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Spectroscopy and Chemical Dynamics
CHIMIA, 2010 Chemical physics and molecular spectroscopy are topics with a traditionally strong emphasis in the department. Current research focuses on the spectroscopic characterization of transient molecules present in interstellar space and the ...
John P. Maier, Stefan Willitsch
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