Exact zero-point energy shift in the e circle times(nE), t circle times(nH) many-modes dynamic Jahn-Teller systems at strong coupling
Articolo
Data di Pubblicazione:
1998
Citazione:
Exact zero-point energy shift in the e circle times(nE), t circle times(nH) many-modes dynamic Jahn-Teller systems at strong coupling / N. Manini, E. Tosatti. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 58:2(1998), pp. 782-790.
Abstract:
We find the exact semiclassical (strong coupling) zero-point energy shifts applicable to the e x (nE) and t x (nH) dynamic Jahn-Teller problems, for an arbitrary number n of discrete vibrational modes simultaneously coupled to one single electronic level. We also obtain an analytical formula for the frequency of the resulting normal modes, which has an attractive and apparently general Slater-Koster form. The Limits of validity of this approach are assessed by comparison with O'Brien's previous effective-mode approach, and with accurate numerical diagonalizations. Numerical values obtained for t x (nH) with n = 8 and coupling constants appropriate to C-60(-) are used for this purpose, and are discussed in the context of fullerene.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
N. Manini, E. Tosatti
Link alla scheda completa: