Intermolecular Forces from the Viewpoint of Quantum Electrodynamics
The techniques of molecular quantum electrodynamics unify the theory of radiation-molecule and molecule-molecule coupling, the latter being treated as an interaction conveyed or mediated by the radiation field. The calculation of intermolecular effects is readily taken to all separation distances, electromagnetic retardation being included in a natural way. The methods themselves are established by wide application, and are correct in all cases tested. The methods are outlined and illustrated in three cases s the primitive resonance between identical molecules, one ground state and one excited; the effect on dispersive binding of an external radiation field; and the change in the chiroptical properties of a coupled pair of molecules, one chiral and one achiral.
KeywordsCircular Dichroism Quantum Electrodynamic Intermolecular Force Chiral Molecule Maxwell Field
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- Tabor, D., and R.H.S. Winterton, ‘The direct measurement of normal and retarded van der Waals forces’ Proc. Roy. Soc. Lond. (1969) A312:435.Google Scholar
- Craig, D.P. and T. Thirunamachandran, Molecular Quantum Electrodynamics, Academic Press, London, 1984.Google Scholar
- Power, E.A., and S. Zienau, ‘Coulomb gauge in non-relativistic quantum electrodynamics and the shape of spectral lines’ Phil. Trans. Roy. Soc. Lond. (1959) A251:54.Google Scholar
- Craig, D.P., E.A. Power and T. Thirunamachandran, ‘The interaction of optically active molecules’ Proc. Roy. Soc. Lond. (1971) A322:165.Google Scholar
- Stratton J.A., Electromagnetic Theory, McGraw Hill, New York, 1941.Google Scholar
- Craig, D.P., E.A. Power and T. Thirunamachandran, ‘The dynamic terms in induced circular dichroism’ Proc. Roy. Soc. Lond. (1976) A348:19.Google Scholar
- Craig, D.P., and T. Thirunamachandran, ‘Change in chiroptical properties caused by intermolecular coupling’ Proc. Roy. Soc. Lond. (1987) A410:337.Google Scholar