Perturbative vs. variational methods in the study of carbon nanotubesReport as inadecuate




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1 MATH. DEPT., AALBORG UNIVERSITY - Institut for Matematiske Fag, Aalborg university 2 Department of Biochemistry and Molecular Biology 3 CPT - Centre de Physique Théorique - UMR 6207 4 CPT - Centre de Physique Théorique - UMR 7332

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.

Keywords : exciton carbon nanotube bound states perturbation theory variational





Author: Horia Cornean - Thomas Pedersen - Benjamin Ricaud -

Source: https://hal.archives-ouvertes.fr/



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