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Enlarged molecules from excited atoms in nanochannels
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
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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
2012. Vol. 86, no 1, 014701- p.
Keyword [en]
Atoms, Binding energy, Cesium, Lithium, Silica, Zinc oxide
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-99398DOI: 10.1103/PhysRevA.86.014701ISI: 000305934300009Scopus ID: 2-s2.0-84863464637OAI: oai:DiVA.org:kth-99398DiVA: diva2:542288
Funder
Swedish Research Council, 70529001
Note
QC 20120731Available from: 2012-07-31 Created: 2012-07-30 Last updated: 2017-12-07Bibliographically approved

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Persson, Clas

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