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Perturbative vs. variational methods in the study of carbon nanotubes

Authors
Publisher
American Mathematical Society
Publication Date
Disciplines
  • Physics

Abstract

Recent two-photon photo-luminescence experiments give accurate data for the ground and first excited excitonic energies at different nanotube radii. In this paper we compare the analytic approximations proved in [CDR], with a standard variational approach. We show an excellent agreement at sufficiently small radii.

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