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  • Thiyam, Priyadarshini, et al. (author)
  • Finite-size-dependent dispersion potentials between atoms and ions dissolved in water
  • 2014
  • In: Europhysics letters. - : IOP Publishing. - 0295-5075 .- 1286-4854. ; 106:5, s. 53002-
  • Journal article (peer-reviewed)abstract
    • A non-expanded theory is used for dispersion potentials between atoms and ions dissolved in a medium. The first-order dispersion interaction between two atoms in an excited state must account for the fact that the two atoms are coupled via the electromagnetic field and must include effects from background media, retardation and finite size. We show that finite-size corrections when two particles are close change the dispersion interactions in water by several orders of magnitude. We consider as four illustrative examples helium atoms, krypton atoms, phosphate ions, and iodide ions. We demonstrate that, due to large cancellation effects, retardation dominates the interaction for helium atom pairs in an isotropic excited state down to the very small atom-atom separations where finite-size corrections are also important.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Persson, Clas (1)
Sernelius, Bo (1)
Boström, Mathias (1)
Parsons, D F (1)
Thiyam, Priyadarshin ... (1)
Brevik, I. (1)
University
Royal Institute of Technology (1)
Linköping University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2014 (1)

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