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Theoretical Physics

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The research in the Theoretical Physics group is primarily focused on condensed matter physics/theoretical materials science, nanoscience and electromagnetic modeling.

The group also gives a large number of courses on graduate as well as undergraduate levels.

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Highlights

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Nonperturbative theory for the dispersion self-energy of atoms

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Priyadarshini Thiyam, C. Persson, I. Brevik, Bo E. Sernelius, and Mathias Boström

Phys. Rev. A 90, 054502 (2014) – Published 14 November 2014

DOI : http://dx.doi.org/10.1103/PhysRevA.90.054502

We go beyond the approximate series expansions used in the dispersion theory of finite-size atoms. We demonstrate that a correct, and nonperturbative, theory dramatically alters the dispersion self-energies of atoms. The nonperturbed theory gives as much as 100% corrections compared to the traditional series-expanded theory

for the smaller noble gas atoms.

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[5] U. Hohm and A. J. Thakkar, J. Phys. Chem. A 116, 697 (2012).

[6] G. D. Mahan and K. R. Subbaswamy, Local Density Theory

of Polarizability (Plenum, New York and London, 1990), Table 4.11.

[7] D. F. Parsons and B. W. Ninham, J. Phys. Chem. A 113, 1141(2009).

[8] D. F. Parsons and B. W. Ninham, Langmuir 26, 1816 (2010).

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Responsible for this page: Fei Wang

Last updated:11/25/14