Title :
Changes in excitation line shapes due to beliaev damping in a BEC
Author :
Rowen, E.E. ; Bar-Gill, N. ; Pugatch ; Davidson, N.
Author_Institution :
Dept. of Physics of Complex Systems, Weizmann Institute for Science, Rehovot, Israel
Abstract :
We quantitatively study the Beliaev decay of Bogoliubov quasi-particles of different energies and momenta in an elongated BEC. The structure of the continuum leads to a momentum dependent collisional shift of the excitation spectrum.
Keywords :
Damping; Frequency; Interference; Optical control; Optical coupling; Physics; Reservoirs; Resonance; Shape; Spontaneous emission;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431784
