Energy relaxation of an excited electron gas in quantum wires: many-body   electron LO-phonon coupling
  We theoretically study energy relaxation via LO-phonon emission in an excited one-dimensional electron gas confined in a GaAs quantum wire structure. We find that the inclusion of phonon renormalization effects in the theory extends the LO-phonon dominated loss regime down to substantially lower temperatures. We show that a simple plasmon-pole approximation works well for this problem, and discuss implications of our results for low temperature electron heating experiments in quantum wires. 
Lian Zheng and S. Das Sarma (Univ. of Maryland)