1203.2634 (G. R. M. Robb et al.)

Comment on `On quantum effects in spontaneous emission by a relativistic
electron beam in an undulator' by G. Geloni, V. Kocharyan and E. Saldin
(arXiv:1202.0691)    [PDF]

G. R. M. Robb, R. Bonifacio

In arXiv:1202.0691, Geloni et al. criticise our recent work describing the spontaneous emission by a relativistic, undulating electron beam. In particular they claim that our prediction of a quantum regime in which evolution of the electron momentum distribution occurs as a sequential population of discrete momentum groups rather than in terms of a drift-diffusion process is unphysical and artificial. We show that the criticism of our model contained in arXiv:1202.0691 is unfounded.

View original: http://arxiv.org/abs/1203.2634