73 citations · 125 across the 12 of their papers we have counts for
17 papers · 1 filter
Shiva and Kali diagrams for composite quantum particle many-body effects
M. Combescot, O. Betbeder-Matibet
For half a century, Feynman diagrams have provided an enlightening way of representing many-body effects between elementary fermions and bosons. They however are quite inappropriat…
Third order susceptibility: general formalism for photoinduced current density in semiconductors
M. Combescot, O. Betbeder-Matibet
This paper contains a detailed derivation of the photoinduced current density at third order in the coupling between a semiconductor and a multifrequency photon field, starting fro…
Exciton many-body effects through infinite series of composite-exciton operators
M. Combescot, O. Betbeder-Matibet
We revisit the approach proposed by Mukamel and coworkers to describe interacting excitons through infinite series of composite-boson operators for both, the system Hamiltonian and…
Effect of fermionic components on trion-electron scattering
M. Combescot, O. Betbeder-Matibet, M. A. Dupertuis
To test the validity of replacing a composite fermion by an elementary fermion, we here calculate the transition rate from a state made of one free electron and one trion to a simi…
A predicted "Faraday oscillation" in photoexcited semiconductors
M. Combescot, O. Betbeder-Matibet
While, for semiconductors photoexcited by a circularly polarized pump, the polarization plane of a linearly polarized probe has been shown to rotate, we here predict a spectacular…
Polariton-polariton scattering: exact results through a novel approach
M. Combescot, M. -A. Dupertuis, O. Betbeder-Matibet
We present a fully microscopic approach to the transition rate of two exciton-photon polaritons. The non-trivial consequences of the polariton composite nature -- here treated exac…