Bosonic behavior of excitons and screening: a consistent calculation
arXiv:cond-mat/0109529 · doi:10.1016/S0375-9601(01)00803-9
Abstract
Excitons have recently been shown to deviate from pure bosons at densities a hundred times smaller than the Mott density. The corresponding calculations relied on the unscreened excitonic ground state wavefunction. A consistent inclusion of screening, by use of the fundamental eigenfunction of the Hulthén potential, vindicates this approximation.
4 pages, 1 figure