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Temperature effects on the Casimir attraction between a pair of quantum wells
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics .ORCID iD: 0000-0002-6281-868X
2000 (English)In: Microelectronic Engineering, ISSN 0167-9317, Vol. 51, 287-297 p.Article in journal (Refereed) Published
Abstract [en]

We present calculations of the free energy of attraction between two quantum wells in which the wells are treated as strictly two-dimensional metallic sheets. The van der Waals force exhibits fractional separation dependence in this system. This is in contrast to the usual integer separation dependence. We have performed numerical calculations at different temperatures and with different carrier densities. Except at very low temperatures thermal effects will be a dominating source of attraction. We have determined temperature criteria that must be fulfilled for the fractional separation dependence to be observable. Thermal corrections will be important already at temperatures less than 1 K. We further make some comments on a recent measurement of the Casimir force.

Place, publisher, year, edition, pages
2000. Vol. 51, 287-297 p.
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Engineering and Technology
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URN: urn:nbn:se:liu:diva-47653DOI: 10.1016/S0167-9317(99)00486-4OAI: oai:DiVA.org:liu-47653DiVA: diva2:268549
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2013-10-02

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Boström, MathiasSernelius, Bo

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