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Journal of Low Temperature Physics

, Volume 113, Issue 5–6, pp 1159–1164 | Cite as

Localization of Ultra-Cold Particles over Rough Substrates

  • A. Stepaniants
  • D. Sarkisov
  • A. Meyerovich
  • A. Steyerl
Article

Abstract

Localization and diffusion parameters are calculated for particles adsorbed over inhomogeneous substrates for discrete and quasicontinuous spectra of the adsorbed states. The results are expressed via the angular harmonics of the correlation function of surface roughness. The problem is solved analytically in the limiting cases of longwave particles and large correlation radii of surface inhomogeneities. Elsewhere, the problem is solved numerically for Gaussian correlation of inhomogeneities. Applications to electrons on helium films, mobile adsorbed hydrogen atoms and molecules, ultra-cold neutrons in gravitational or magnetic field, etc., are discussed.

Keywords

Magnetic Field Helium Surface Roughness Hydrogen Atom Correlation Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

  • A. Stepaniants
    • 1
  • D. Sarkisov
    • 1
  • A. Meyerovich
    • 1
  • A. Steyerl
    • 1
  1. 1.Department of PhysicsUniversity of Rhode IslandKingston

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