Combescot, M.; Betbeder-Matibet, O. - In: The European Physical Journal B - Condensed Matter and … 42 (2004) 4, pp. 509-528
We here consider an exciton i embedded in a sea of N identical excitons 0. If the excitons are taken as true bosons, a bosonic enhancement factor N is found for i=0. If the exciton composite nature is kept, this enhancement not only exists for i=0, but also for any exciton having a center of...