Bogoliubov speed of sound for a dilute Bose-Einstein condensate in a 3d optical lattice
(2004)
Journal Article
Boers, D., Weiss, C., & Holthaus, M. (2004). Bogoliubov speed of sound for a dilute Bose-Einstein condensate in a 3d optical lattice. European Physical Society Letters, 67(6), https://doi.org/10.1209/epl/i2004-10140-7
We point out that the velocity of propagation of sound wavepackets in a Bose-Einstein condensate filling a three-dimensional cubic optical lattice undergoes a maximum with increasing lattice depth. For a realistic choice of parameters, the maximum so... Read More about Bogoliubov speed of sound for a dilute Bose-Einstein condensate in a 3d optical lattice.