%0 Journal Article
%J Japanese Journal of Applied Physics
%D 1987
%T Many Body Theory of the Formation and Dynamics of Excitons in an Electron-Hole Gas at Low Temperatures
%A René Côté
%A Griffin, A.
%X Using functional differentiation to obtain the two-particle Green's functions, we give a systemmatic discussion of the collective modes in an electron-hole gas at low temperatures. Our analysis is based on the well known pairing approximation for the single particle self-energies and corresponds to the generalized RPA. The excitons with finite momentum appear as fluctuations of the electron-hole condensate and have a linear dispersion relation (Keldysh and Kozlov).
%B Japanese Journal of Applied Physics
%I The Japan Society of Applied Physics
%V 26S3
%P 685-686
%G eng
%U http://jjap.ipap.jp/link?JJAPS/26S3/685/