Results 11 to 20 of about 949,044 (283)
Prospects for Studies of the Free Fall and Gravitational Quantum States of Antimatter [PDF]
Advances in High Energy Physics, 2015 Different experiments are ongoing to measure the effect of gravity on cold neutral antimatter atoms such as positronium, muonium, and antihydrogen.
G. Dufour +8 more
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Interaction-Free Effects Between Distant Atoms [PDF]
Foundations of Physics, 2017 24 pages, 2 figures.
Yakir Aharonov +3 more
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Modeling of structural and energetic parameters of р-Er1-xScxNiSb semiconductor
Фізика 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
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Metal-Free Atom Transfer Radical Polymerization [PDF]
Journal of the American Chemical Society, 2014 Overcoming the challenge of metal contamination in traditional ATRP systems, a metal-free ATRP process, mediated by light and catalyzed by an organic-based photoredox catalyst, is reported. Polymerization of vinyl monomers are efficiently activated and deactivated with light leading to excellent control over the molecular weight, polydispersity, and ...
Treat, Nicolas J +7 more
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Materials 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
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Free-standing graphene at atomic resolution [PDF]
Nature 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
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Atom-by-atom assembly of defect-free one-dimensional cold atom arrays [PDF]
Science, 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
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Nanomaterials, 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
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The effects of halogen elements on the opening of an icosahedral B12 framework [PDF]
, 2017 The fully halogenated or hydrogenated B12X12 (X = H, F, Cl, Br and I) clusters are confirmed to be icosahedral. On the other hand, the bare B12 cluster is shown to have a planar structure. A previous study showed that a transformation from an icosahedron
Gong, Liang-Fa +5 more
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Cavity atom optics and the `free atom laser' [PDF]
Optics Communications, 2000 The trap environment in which Bose-Einstein condensates are generated and/or stored strongly influences the way they interact with light. The situation is analogous to cavity QED in quantum optics, except that in the present case, one tailors the matter-wave mode density rather than the density of modes of the optical field.
Heurich, J., Moore, M. G., Meystre, P.
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