Direct measurement of exciton-exciton interaction energy.
We report a direct measurement of the spectral function (real and imaginary self-energy) of excitons with a repulsive interaction potential. These results allow a stringent test of many-body theories of the exciton-exciton interaction which is independent of the exciton density calibration.
Vörös
Z
Z
Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, Pennsylvania 15260, USA.
Snoke
D W
DW
Pfeiffer
L
L
West
K
K