Abstract

CASTILLO-MUSSOT, M. del; VAZQUEZ, G.J.  and  REYES, J.A.. Variational anisotropic model of Wannier excitons compared with fractional-dimensional space approach. Rev. mex. fis. [online]. 2002, vol.48, n.6, pp.504-507. ISSN 0035-001X.

Binding energy of Wannier excitons in a quantum well of thickness L is studied using two models: a two-parameter trial wave function and a fractional-dimensional space with dimension 2 ≤ α ≤ 3. Since both models provide quantitative measures of the exciton spatial anisotropy as L changes, we give physical arguments for a plausible definition of α = α(L).

Keywords : Electron states and collective excitations in multilayers; quantum wells; mesoscopic and nanoscale systems.

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