Issue 26, 2024

Dispersion interaction between thin conducting cylinders

Abstract

The ground state and excited state resonance dipole–dipole interaction energy between two elongated conducting molecules is explored in this study. We review the current status for ground state interactions. This interaction is found to be of a much longer range than in the case when the molecules are pointlike and nonconducting. These are well known results found earlier by Davies, Ninham, and Richmond, and later, using a different formalism, by Rubio and co-workers. We show how the theory can be extended to excited state interactions. A characteristic property observed from our calculation is that the interaction energy dependence on separation (R) follows f(R)/R2 for both resonance and van der Waals cases in the long-range limit. Under some limits, f(R) has a logarithmic dependency, while under others, it has constant values. We predict an unusual slow decay rate for the energy transfer between conducting molecules.

Graphical abstract: Dispersion interaction between thin conducting cylinders

Article information

Article type
Review Article
Submitted
23 Agd 2024
Accepted
30 Cax 2024
First published
19 Qas 2024

Phys. Chem. Chem. Phys., 2024,26, 17969-17978

Dispersion interaction between thin conducting cylinders

S. Pal, I. Brevik and M. Boström, Phys. Chem. Chem. Phys., 2024, 26, 17969 DOI: 10.1039/D4CP01664E

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