Scattering rates and lifetime of exact and boson excitons release_sxis7264cvfhjoj7t4gwtmun5i

by M.Combescot, O.Betbeder-Matibet

Released as a article .

2004  

Abstract

Although excitons are not exact bosons, they are commonly treated as such provided that their composite nature is included in effective scatterings dressed by exchange. We here prove that, whatever these scatterings are, they cannot give both the scattering rates T_ij^-1 and the exciton lifetime τ_0, correctly: A striking factor 1/2 exists between τ_0^-1 and the sum of T_ij^-1's, which originates from the composite nature of excitons, irretrievably lost when they are bosonized. This result, which appears as very disturbing at first, casts major doubts on bosonization for problems dealing with interacting excitons.
In text/plain format

Archived Content

There are no accessible files associated with this release. You could check other releases for this work for an accessible version.

"Dark" Preservation Only
Save Paper Now!

Know of a fulltext copy of on the public web? Submit a URL and we will archive it

Type  article
Stage   submitted
Date   2004-02-03
Version   v1
Language   en ?
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: 3d02abda-f8f8-4cef-964f-3b4ce8a7eeef
API URL: JSON