exciton operators : commutation relations and dynamics
abstract
the electron-hole pair operator commutation relations for a semiconductor
are explicitly derived showing that the pairs are quasi-bosons
with statistics intermediate between bosons and fermions. these pair
operators are transformed into exciton operators, that incorporate the
intra-pair coulomb interaction, and it is found that the commutation
relations remain quasi-bosonic. the exciton dynamics written in terms
of the exciton operators are derived in the heisenberg picture and
compared with the traditionally used semiconductor bloch equations.
collections
- retrospective theses [1604]