Results 71 to 80 of about 7,140 (198)

Formation of ultracold LiCs molecules [PDF]

open access: yes, 2006
We present the first observation of ultracold LiCs molecules. The molecules are formed in a two-species magneto-optical trap and detected by two-photon ionization and time-of-flight mass spectrometry. The production rate coefficient is found to be in the
Gonzalez-Ferez R   +9 more
core   +3 more sources

Perspective: Ultracold molecules and the dawn of cold controlled chemistry [PDF]

open access: yesThe Journal of Chemical Physics, 2016
Ultracold molecules offer unprecedented opportunities for the controlled interrogation of molecular events, including chemical reactivity in the ultimate quantum regime. The proliferation of methods to create, cool, and confine them has allowed the investigation of a diverse array of molecular systems and chemical reactions at temperatures where only a
openaire   +2 more sources

Triplet-singlet conversion in ultracold Cs$_2$ and production of ground state molecules

open access: yes, 2010
We propose a process to convert ultracold metastable Cs$_2$ molecules in their lowest triplet state into (singlet) ground state molecules in their lowest vibrational levels.
D. Gerlich   +6 more
core   +1 more source

Directional quantum-controlled chemistry: Generating aligned ultracold molecules via photoassociation

open access: yesPhysical Review A, 2017
Photoassociation of ultracold atoms is shown to lead to alignment of the product molecules along the excitation laser polarization axis. We theoretically investigate pulsed photoassociation of $^{87}Rb$ atoms into a specific weakly-bound level of the a $^3 _u^+$ metastable electronic state and find both stationary and time-dependent field-free ...
Kallush, S.   +3 more
openaire   +3 more sources

Scoop That Poop: Optimising Faecal Sample Pre‐Processing for Parasite Metabarcoding

open access: yesMolecular Ecology Resources, Volume 26, Issue 2, February 2026.
ABSTRACT Molecular techniques such as DNA metabarcoding are increasingly used to characterise parasite communities. However, relatively few studies have examined how sample processing methods influence detection rates. We used faecal samples collected from free‐roaming horses to evaluate how parasite density and pre‐processing methods influenced ...
Madison E. Patch   +2 more
wiley   +1 more source

Ab initio electronic structure and prospects for the formation of ultracold calcium–alkali-metal-atom molecular ions

open access: yesNew Journal of Physics, 2020
Experiments with cold ion–atom mixtures have recently opened the way for the production and application of ultracold molecular ions. Here, in a comparative study, we theoretically investigate ground and several excited electronic states and prospects for
Wissem Zrafi   +4 more
doaj   +1 more source

Creating ultracold molecules by collisions with ultracold rare gas atoms in an optical trap

open access: yes, 2008
We study collisions of para-H$_2$ with five rare gas atomic species (He, Ne, Ar, Kr and Xe) over the range from 1 K to 1 $\mu$ K and evaluate the feasibility of sympathetic cooling H$_2$ with ultracold ground state rare gas atoms co-trapped within a deep
Barker, P. F.   +2 more
core   +1 more source

Polaritonic quantum matter

open access: yesNanophotonics, Volume 14, Issue 23, Page 3723-3760, 02 November 2025.
Abstract Polaritons are quantum mechanical superpositions of photon states with elementary excitations in molecules and solids. The light–matter admixture causes a characteristic frequency‐momentum dispersion shared by all polaritons irrespective of the microscopic nature of material excitations that could entail charge, spin, lattice or orbital ...
D.N. Basov   +8 more
wiley   +1 more source

Improving the stimulated Raman adiabatic passage efficiency for ultracold 6Li40K ground state molecules

open access: yesCommunications Physics
Ultracold polar molecules represent a rapidly advancing platform at the forefront of quantum simulation, quantum computation, quantum chemistry, and precision measurement.
Anbang Yang   +6 more
doaj   +1 more source

The diatomic molecular spectroscopy database

open access: yesJournal of Cheminformatics, 2020
Motivation The spectroscopy of diatomic molecules is an important research area in chemical physics due to its relevance in astrochemistry, combustion chemistry, and ultracold physics.
Xiangyue Liu   +3 more
doaj   +1 more source

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