Random Interactions
Dynamics of ultracold bosons in optical lattices
by Prof. Krishnendu Sengupta (IACS, Kolkata)
Thursday, April 18, 2013
from
to
(Asia/Kolkata)
at Colaba Campus ( A414 )
at Colaba Campus ( A414 )
Description |
In this talk, we shall discuss the non-equilibrium dynamics of the Bose Hubbard model for both ramp periodic protocols using a projection operator method which allows us to track the dynamics of the model beyond mean-field theory. Our analysis shows that for periodic dynamics, there exists special frequencies at which the system wavefunction comes back to itself after a period. We connect to recent experiments on these models using cold atoms and suggest further experiments to test our theory. We also study the dynamics of these bosons in the presence of an ``electric field'' in the Mott phase and show that it provides an ideal test bed for Kibble-Zureck laws for finite size systems. |