Sympathetic cooling of an atomic Bose-Fermi gas mixture

Quantum Degeneracy in an Atomic Fermi-Fermi-Bose Mixture

This thesis deals with dilute fermionic and bosonic quantum gases in the nK temperature regime. In the work presented here, the first quantum-degenerate mixture of two different fermionic atomic species and the first triple-degenerate Fermi-Fermi-Bose mixture were produced. The quantum-degenerate mixtures were realized using sympathetic cooling of the fermionic species 6Li and 40K by an evapora...

Cooling and Trapping a Bose-Fermi Mixture of Dilute Atomic Gases

Thermodynamical approaches to efficient sympathetic cooling in ultracold Fermi-Bose atomic mixtures

Michael Brown-Hayes, Qun Wei, Carlo Presilla, and Roberto Onofrio Department of Physics and Astronomy, Dartmouth College, 6127 Wilder Laboratory, Hanover, New Hampshire 03755, USA Dipartimento di Fisica, Università di Roma “La Sapienza,” Piazzale A. Moro 2, Roma 00185, Italy Center for Statistical Mechanics and Complexity, INFM-CNR, Unità di Roma 1, Roma 00185, Italy INFN, Sezione di Roma 1, Ro...

Dipolar oscillations in a quantum degenerate Fermi - Bose atomic mixture

We study the dynamics of coupled dipolar oscillations in a Fermi-Bose mixture of 40 K and 87 Rb atoms. This low-energy collective mode is strongly affected by the interspecies interactions. Measurements are performed in the dynamical and quantum degenerate regimes and evidence the crucial role of the statistical properties of the mixture. At the onset of quantum degeneracy, we investigate the r...

Realization of a strongly interacting Bose-Fermi mixture from a two-component Fermi gas.

We show the emergence of a strongly interacting Bose-Fermi mixture from a two-component Fermi mixture with population imbalance. By analyzing in situ density profiles of 6Li atoms in the BCS-BEC crossover regime, we identify a critical interaction strength, beyond which all minority atoms pair up with majority atoms and form a Bose condensate. This is the regime where the system can be effectiv...