Results 11 to 20 of about 304,586 (264)

Photoionization of Rydberg atoms in optical lattices

open access: yesNew Journal of Physics, 2021
We develop a formalism for photoionization (PI) and potential energy curves (PECs) of Rydberg atoms in ponderomotive optical lattices and apply it to examples covering several regimes of the optical-lattice depth.
R Cardman   +4 more
doaj   +1 more source

Modeling of structural and energetic parameters of р-Er1-xScxNiSb semiconductor

open access: yesФізика і хімія твердого тіла, 2021
The energy expediency of the existence of Er1-xScxNiSb substitutional solid solution up to the concentration x≈0.10 was established by modeling the variation of free energy ΔG(x) values (Helmholtz potential).
Yu. Stadnyk   +7 more
doaj   +1 more source

Atomic-free irregular computations on GPUs [PDF]

open access: yesProceedings of the 6th Workshop on General Purpose Processor Using Graphics Processing Units, 2013
Atomic instructions are a key ingredient of codes that operate on irregular data structures like trees and graphs. It is well known that atomics can be expensive, especially on massively parallel GPUs, and are often on the critical path of a program. In this paper, we present two high-level methods to eliminate atomics in irregular programs.
Rupesh Nasre   +2 more
openaire   +1 more source

Free-standing graphene at atomic resolution [PDF]

open access: yesNature Nanotechnology, 2008
Research interest in graphene, a two-dimensional crystal consisting of a single atomic plane of carbon atoms, has been driven by its extraordinary properties, including charge carriers that mimic ultra-relativistic elementary particles. Moreover, graphene exhibits ballistic electron transport on the submicrometre scale, even at room temperature, which ...
Gass, Mhairi H.   +5 more
openaire   +3 more sources

Interaction of 1/2〈111〉 interstitial dislocation loop with hydrogen and helium in tungsten: molecular dynamics simulation

open access: yesMaterials Research Express, 2023
The interaction of hydrogen and helium atoms with 1/2 〈111〉 interstitial dislocation loop in tungsten is investigated by molecular dynamics simulation. The binding energies of hydrogen and helium atoms around dislocation loop are calculated by molecular ...
Bai-Chuan Xu   +7 more
doaj   +1 more source

An atom-by-atom assembler of defect-free arbitrary two-dimensional atomic arrays [PDF]

open access: yesScience, 2016
Making perfect atomic arrays Arrays of atoms can be a useful resource for quantum information. However, loading atoms into arrays is typically a stochastic process, which leads to imperfections. Two groups have now performed defect-free assembly of atoms into arrays (see the Perspective by Regal). The researchers first loaded the
Barredo, Daniel   +4 more
openaire   +3 more sources

Atom-by-atom assembly of defect-free one-dimensional cold atom arrays [PDF]

open access: yesScience, 2016
Making perfect atomic arrays Arrays of atoms can be a useful resource for quantum information. However, loading atoms into arrays is typically a stochastic process, which leads to imperfections. Two groups have now performed defect-free assembly of atoms into arrays (see the Perspective by Regal). The researchers first loaded the
Endres, Manuel   +9 more
openaire   +3 more sources

Highly Dispersed Ni on Nitrogen-Doped Carbon for Stable and Selective Hydrogen Generation from Gaseous Formic Acid

open access: yesNanomaterials, 2023
Ni supported on N-doped carbon is rarely studied in traditional catalytic reactions. To fill this gap, we compared the structure of 1 and 6 wt% Ni species on porous N-free and N-doped carbon and their efficiency in hydrogen generation from gaseous formic
Alina D. Nishchakova   +8 more
doaj   +1 more source

Purcell-enhanced dipolar interactions in nanostructures

open access: yesPhysical Review Research, 2022
Strong light-induced interactions between atoms are known to cause nonlinearities at a few-photon level, which are crucial for applications in quantum information processing.
A. Skljarow   +5 more
doaj   +1 more source

Interaction-Free Effects Between Distant Atoms [PDF]

open access: yesFoundations of Physics, 2017
24 pages, 2 figures.
Yakir Aharonov   +3 more
openaire   +6 more sources

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