Nonequilibrium dynamics of the Bose gas
These papers address the following question: if a Bose gas is suddenly
quenched to a temperature below its critical temperature, how does its
condensate fraction grow with time ? We make a connection of this problem
to theory of coarsening in statistical mechanics. We identify a
universal critical exponent associated with rate of condensate growth and
estimate its value by numerical simulations.
Paper 4 also deals with the restoration of phase coherence, but after a zero
temperature `quantum' quench
i.e. in a Mott insulator which the boson amplitude is suddenly increased.
PAPERS

Phase ordering kinteics of the Bose gas, K. Damle,
S. Majumdar, and S. Sachdev, Physical Review A 54, 5037 (1996);
condmat/9511058.

Phase transition of a Bose gas in a harmonic potential,
K. Damle, T. Senthil. S. Majumdar, and S. Sachdev, Europhysics Letters
36,
7 (1996); condmat/9604037.

Far from equilibrium dynamics of the Bose gas, K.
Damle, S.N. Majumdar, and S. Sachdev, Pune Workshop (CMT20) Proceedings,
Condensed Matter Theories vol 12., J.W. Clark ed., Nova Science Publishing
(1997); condmat/9705047.

Nonequilibrium GrossPitaevskii dynamics of boson lattice models, A. Polkovnikov, S. Sachdev,
and S.M. Girvin, Physical Review A 66, 053607 (2002); condmat/0206490.
 Quench dynamics across quantum critical points, K. Sengupta, S. Powell, and S. Sachdev, Physical Review A 69, 053616 (2004); condmat/0311355.
NEXT ; PREVIOUS ; CATEGORIES