Scattering rates and lifetime of exact and boson excitons

Details Scattering rates and lifetime of exact and boson excitons Scattering rates and lifetime of exact and boson excitons

2004-02-03

arxiv.org/abs/cond-mat/0402087v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.93.016403

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 \emph{prove} that, \emph{whatever these scatterings are}, they cannot give both the scattering rates $T_{ij}^{-1}$ and the exciton lifetime $\tau_0$, correctly: A striking factor 1/2 exists between $\tau_0^{-1}$ 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 \emph{interacting} excitons.

Affiliated with

Also associated with

No associations

Rating

Scattering rates and lifetime of exact and boson excitons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Scattering rates and lifetime of exact and boson excitons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scattering rates and lifetime of exact and boson excitons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-546298