Results 71 to 80 of about 13,441 (199)

Trapping of ultracold polar molecules with a Thin Wire Electrostatic Trap

open access: yes, 2007
We describe the realization of a dc electric-field trap for ultracold polar molecules, the thin-wire electrostatic trap (TWIST). The thin wires that form the electrodes of the TWIST allow us to superimpose the trap onto a magneto-optical trap (MOT).
C. Haimberger   +4 more
core   +1 more source

Ultracold 88Sr2 molecules in the absolute ground state

open access: yesNew Journal of Physics, 2021
We report efficient all-optical creation of an ultracold gas of alkaline-earth-metal dimers, ^88 Sr _2 , in their absolute ground state. Starting with weakly bound singlet molecules formed by narrow-line photoassociation in an optical lattice, followed ...
K H Leung   +5 more
doaj   +1 more source

Skyrmionic Polarization Textures in Structured Dielectric Planar Media

open access: yesNanophotonics, Volume 15, Issue 3, 12 February 2026.
Topological skyrmionic textures are typically associated with the structure of optical fields. This work demonstrates that they can also emerge from the optical response of structured metasurfaces. Through engineered light–matter interaction, polarization eigenstates acquire nontrivial topology, which can be mapped into the Chern‐insulator physics ...
Francesco Di Colandrea   +2 more
wiley   +1 more source

Stabilization of Ultracold Molecules Using Optimal Control Theory

open access: yes, 2004
In recent experiments on ultracold matter, molecules have been produced from ultracold atoms by photoassociation, Feshbach resonances, and three-body recombination. The created molecules are translationally cold, but vibrationally highly excited.
C. E. Treanor   +10 more
core   +1 more source

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

open access: yesSmall Structures, Volume 7, Issue 2, February 2026.
Superfluid helium nanodroplets enable ultraclean synthesis of metallic clusters and nanowires unattainable by other methods. This review surveys aberration‐corrected scanning transmission electron microscopy (STEM), electron energy loss spectroscopy (EELS)/energy‐dispersive X‐ray spectroscopy (EDX), and electron tomography to resolve their structure ...
Daniel Knez   +3 more
wiley   +1 more source

Ultracold giant polyatomic Rydberg molecules: coherent control of molecular orientation

open access: yes, 2010
We predict the existence of a class of ultracold giant molecules formed from trapped ultracold Rydberg atoms and polar molecules. The interaction which leads to the formation of such molecules is the anisotropic charge-dipole interaction ($a/R^2$).
H. R. Sadeghpour   +2 more
core   +1 more source

Ultracold polar molecules near quantum degeneracy [PDF]

open access: yesFaraday Discussions, 2009
We report the creation and characterization of a near quantum-degenerate gas of polar $^{40}$K-$^{87}$Rb molecules in their absolute rovibrational ground state. Starting from weakly bound heteronuclear KRb Feshbach molecules, we implement precise control of the molecular electronic, vibrational, and rotational degrees of freedom with phase-coherent ...
Ospelkaus, S.   +8 more
openaire   +3 more sources

Dynamics of ultracold polar molecules in a microwave field

open access: yesNew Journal of Physics, 2015
We analyze the temporal evolution of the population of ultracold polar molecules in a microwave (mw) field with a circular polarization. The molecules are in their ground $^{1}\Sigma $ state and treated as rigid rotors with a permanent dipole moment ...
Alexander V Avdeenkov
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

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

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