J. Phys. IV France
Volume 116, October 2004
Page(s) 253 - 258

J. Phys. IV France 116 (2004) 253-258

DOI: 10.1051/jp4:2004116014

Quasi-2D Bose-Fermi mixtures in an optical lattice

F. Ferlaino1, E. De Mirandes1, R. Heidemann1, 1, G. Roati1, G. Modugno1 and M. Inguscio1

1  LENS and Dipartimento di Fisica, Università di Firenze, and INFM, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy

We give an overview on our current experiments with Bose-Fermi degenerate mixtures in a one dimensional (1D) optical lattice. Our system consists of a Fermi gas of 40K atoms and a Bose-Einstein condensate of 87Rb. The two species are simultaneously trapped in a combined magnetic and optical lattice potential. We have investigated the thermodynamical properties of the mixture in a tight lattice and observed a change in the density of states. This is a signature of a quasi two dimensional confinement of the atoms in the lattice sites. We also discuss the mechanical stability of the mixture in presence of the 1D lattice.

© EDP Sciences 2004