1209.0840 (T. Yang et al.)

Dynamical excitations in the collision of 2D Bose-Einstein condensates    [PDF]

T. Yang, B. Xiong, Keith A. Benedict

We carry out simulations of the collision of two components of an adiabatically divided, quasi-2D BEC. We identify under, over and critically damped regimes in the dipole oscillations of the components according to the balance of internal and centre-of-mass (c.m.) energies of the components and investigate the creation of internal excitations. We distinguish the behaviour of this system from previous studies of quasi-1D BEC's. In particular we note that the nature of the internal excitations is only essentially sensitive to an initial phase difference between the components in the overdamped regime.

View original: http://arxiv.org/abs/1209.0840