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Träfflista för sökning "WFRF:(Sadeghpour Hossein) "

Search: WFRF:(Sadeghpour Hossein)

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1.
  • Aumayr, Friedrich, et al. (author)
  • Roadmap on photonic, electronic and atomic collision physics : III. Heavy particles
  • 2019
  • In: Journal of Physics B. - : IOP Publishing. - 0953-4075 .- 1361-6455. ; 52:17
  • Journal article (peer-reviewed)abstract
    • We publish three Roadmaps on photonic, electronic and atomic collision physics in order to celebrate the 60th anniversary of the ICPEAC conference. Roadmap III focusses on heavy particles: with zero to relativistic speeds. Modern theoretical and experimental approaches provide detailed insight into the wide range of many-body interactions involving projectiles and targets of varying complexity ranging from simple atoms, through molecules and clusters, complex biomolecules and nanoparticles to surfaces and crystals. These developments have been driven by technological progress and future developments will expand the horizon of the systems that can be studied. This Roadmap aims at looking back along the road, explaining the evolution of the field, and looking forward, collecting nineteen contributions from leading scientists in the field.
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2.
  • Froelich, Piotr, et al. (author)
  • On the Bose-Einstein Condensation of Exotic Atoms
  • 2006
  • In: Journal of Physics B. - : IOP Publishing. - 0953-4075 .- 1361-6455. ; 39:18, s. 3889-3895
  • Journal article (peer-reviewed)abstract
    • The scattering length for hydrogenic atoms with variable lepton mass, ranging from H to p mu, is calculated. The non-trivial sensitivity of the scattering length to non-adiabatic effects is investigated using the coupled-channel approach. The physical conditions for the Bose-Einstein condensation of exotic atoms are expressed in terms of this scattering length, which for the p mu atoms interacting via (3)Sigma(+)(u) potentials, is calculated to be 1.13 x 10(-2) au. The critical temperature for condensing the p mu atoms is estimated to be 0.5 K at a density of 2.2 x 10(20) cm(-3). Under these conditions the phonon velocity in the condensate is 2.2 m s(-1) and the coherence length is nearly 5 mu m.
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3.
  • Ueda, Kiyoshi, et al. (author)
  • Roadmap on photonic, electronic and atomic collision physics : I. Light-matter interaction
  • 2019
  • In: Journal of Physics B. - : IOP PUBLISHING LTD. - 0953-4075 .- 1361-6455. ; 52:17
  • Journal article (peer-reviewed)abstract
    • We publish three Roadmaps on photonic, electronic and atomic collision physics in order to celebrate the 60th anniversary of the ICPEAC conference. In Roadmap I, we focus on the light-matter interaction. In this area, studies of ultrafast electronic and molecular dynamics have been rapidly growing, with the advent of new light sources such as attosecond lasers and x-ray free electron lasers. In parallel, experiments with established synchrotron radiation sources and femtosecond lasers using cutting-edge detection schemes are revealing new scientific insights that have never been exploited. Relevant theories are also being rapidly developed. Target samples for photon-impact experiments are expanding from atoms and small molecules to complex systems such as biomolecules, fullerene, clusters and solids. This Roadmap aims to look back along the road, explaining the development of these fields, and look forward, collecting contributions from twenty leading groups from the field.
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