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Bosonic behavior of excitons and screening: a consistent calculation

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
292
Identifiers
DOI: 10.1016/s0375-9601(01)00803-9

Abstract

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.

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