DYNAMICS OF A SUPERFLUID FERMI GAS AT FINITE TEMPERATURES.

John E. Thomas, S. L. Hemmer, Joseph M. Kinast +3 more

Peter Schuck, Mi­chael Urban

P. Shanta, S. Chaturvedi, Ashok Kumar Kapoor +1 more

We consider para-Bose and para-Fermi oscillators within the framework of thermofield dynamics. For these systems, we construct the transformation relating the thermal vacuum state to the zero temperature vacuum. This construction makes use of a nonlinear realization of the single mode para-Bose (para-Fermi) algebra in terms of a single boson.

M.P. Kemoklidze, Лев П. Питаевский

Kensuke Inaba, Sei-ichiro Suga

We investigate the finite-temperature properties of attractive three-component (colors) fermionic atoms in optical lattices using a self-energy functional approach. As the strength of the attractive interaction increases in the low temperature region, a second-order transition occurs from a Fermi liquid to a color superfluid (CSF). In the strong attractive region, a first-order transition occurs from a CSF to a trionic state. In the high temperature region, a crossover between a Fermi liquid and a trionic state is observed with increasing the strength of the attractive interaction. The crossover region for fixed temperature is almost independent of filling.

Michiel Wouters, Jacques Tempere, Jozef T. Devreese