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Enlarged molecules from excited atoms in nanochannels
Australian National University, Australia Norwegian University of Science and Technology, Norway .
Norwegian University of Science and Technology, Norway .
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-6281-868X
Royal Institute Technology, Sweden .
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2012 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 86, no 1, 014701- p.Article in journal (Refereed) Published
Abstract [en]

The resonance interaction that takes place in planar nanochannels between pairs of excited-state atoms is explored. We consider interactions in channels of silica, zinc oxide, and gold. The nanosized channels induce a dramatically different interaction from that in free space. Illustrative calculations for two lithium and cesium atoms demonstrate that there is a short-range repulsion followed by long-range attraction. The binding energy is strongest near the surfaces. The size of the enlarged molecule is biggest at the center of the cavity and increases with channel width. Since the interaction is generic, we predict that enlarged molecules are formed in porous structures, and that the molecule size depends on the size of the nanochannels.

Place, publisher, year, edition, pages
American Physical Society , 2012. Vol. 86, no 1, 014701- p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-79670DOI: 10.1103/PhysRevA.86.014701ISI: 000305934300009OAI: oai:DiVA.org:liu-79670DiVA: diva2:544291
Available from: 2012-08-14 Created: 2012-08-13 Last updated: 2017-12-07

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