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Ashok Sethia
Research Summary:
The behavior of an excess electron in a one, two and three
dimensional classical liquid has been studied with the aid of Chandler, Singh
and Richardson (CSR) theory [J. Chem. Phys. 81 1975 (1984)] .
The size or dispersion of the wavepacket associated
with the solvated electron is very
sensitive to the interaction
between the electron and fluid atoms, and exhibits complicated behavior in
its density dependence. The behavior is interpreted in terms of an interplay
among four causes: the excluded volume effect due to solvent, the pair
attractive interaction between the electron and a solvent atom, the
thermal wavelength of the electron (&lambdae), a
balance of the attractive interactions from different solvent atoms and
the range of repulsive interaction between electron and solvent atom. Electron
self-trapping behavior in all the dimensions has been studied for the same
solvent-solvent and electron-solvent interaction potential and the results
are presented for the same parameter in every dimension to show the
comparison between the various dimensions.
Using CSR theory equilibrium properties of Helium-4 at low
temperature has been evaluated and we are trying to study the B-E
condensation.
Using the path integral method many identical bosons has been
studied and the work will be completed soon.
Publications:
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