Author:
Szwed E.A.,Vermilyea B.,Choksy D.J.,Zhou Zhiwen,Fogler M.M.,Butov L.V.,Efimkin D.K.,Baldwin K.W.,Pfeiffer L.N.
Abstract
We observed attractive and repulsive Bose-polarons in neutral electron-hole systems in separated electron and hole layers in GaAs heterostructure. The measured energy splitting between the polarons increases with density, in agreement with the theoretical calculations.