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Finite-size-dependent dispersion potentials between atoms and ions dissolved in water
Royal Institute of Technology, Stockholm, Sweden.
Royal Institute of Technology, Stockholm, Sweden; University of Oslo, Norway; Norwegian University of Science and Technology, Trondheim, Norway .
Royal Institute of Technology, Stockholm, Sweden; University of Oslo, Norway .
Australian National University, Australia .
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2014 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 106, no 5, 53002- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
European Physical Society , 2014. Vol. 106, no 5, 53002- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-109396DOI: 10.1209/0295-5075/106/53002ISI: 000339151800008OAI: oai:DiVA.org:liu-109396DiVA: diva2:738022
Available from: 2014-08-15 Created: 2014-08-15 Last updated: 2017-12-05Bibliographically approved

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Sernelius, Bo

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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