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Theory of the linear polarizability of a two-level atom

Loudon, Rodney and Barnett, Stephen M. (2006) Theory of the linear polarizability of a two-level atom. Journal of Physics B: Atomic, Molecular and Optical Physics, 39 (15). S555-S563. ISSN 0953-4075

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The polarizability of a two-level atom in the presence of radiative damping alone is derived by a Green function calculation. The rotating-wave approximation is not made, either in the interaction of the atom with the incident light or in its interaction with the scattered optical field. In contrast to previous work, the derivation takes account of the modification of the system ground state brought about by the non-rotating-wave part of the latter interaction. The final expression satisfies the optical theorem in addition to the other general requirements on the polarizability.

Item type: Article
ID code: 31074
Keywords: polarizability , green function, optical theorem, Optics. Light, Atomic and Molecular Physics, and Optics, Condensed Matter Physics
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Depositing user: Pure Administrator
Date Deposited: 22 Jun 2011 14:32
Last modified: 01 Oct 2015 10:34

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