“…In the superradiant Rayleigh scattering (Bar-Gill et al, 2007;Guo et al, 2008;Inouye et al, 1999;Kozuma, Suzuki et al, 1999;Moore & Meystre, 1999;Pu et al, 2003;Sadler et al, 2007;Schneble et al, 2003;Slama et al, 2007;Zobay & Nikolopoulos, 2006), the spatial and time evolutions of superradiant scattering are studied for a weak pump beam with different frequency components traveling along the long axis of an elongated Bose-Einstein condensate. Through the analysis of the mode competition between the different resonant channels and the local depletion of the spatial distribution, we can get a large number of high-order forward modes by resonant frequency components of the pump beam ).…”