70 citations · 131 across the 5 of their papers we have counts for
10 papers
Pairing based cooling of Fermi gases
M. J. Leskinen, J. Kinnunen, P. Torma
We propose a pairing-based method for cooling an atomic Fermi gas. A three component (labels 1, 2, 3) mixture of Fermions is considered where the components 1 and 2 interact and, f…
A hybrid method for calorimetry with subnanolitre samples using Schottky junctions
T. K. Hakala, J. J. Toppari, P. Torma
A micrometer scale calorimeter realized by using Schottky junctions as a thermometer is presented. Combined with a hybrid experimental method, it enables simultaneous time-resolved…
Co-existence and shell structures of several superfluids in trapped three-component Fermi mixtures
T. Paananen, P. Torma, J. -P. Martikainen
We study the properties of a trapped interacting three component Fermi gas. We assume that one of the components can have a different mass from the other two. We calculate the diff…
Non-BCS superfluidity in trapped ultracold Fermi gases
L. M. Jensen, J. Kinnunen, P. Torma
Superconductivity and superfluidity of fermions require, within the BCS theory, matching of the Fermi energies of the two interacting Fermion species. Difference in the number dens…
Pairing in a three component Fermi gas
T. Paananen, J. -P. Martikainen, P. Torma
We consider pairing in a three-component gas of degenerate fermions. In particular, we solve the finite temperature mean-field theory of an interacting gas for a system where both…
Sound velocity and dimensional crossover in a superfluid Fermi gas in an optical lattice
T. Koponen, J. -P. Martikainen, J. Kinnunen +1
We study the sound velocity in cubic and non-cubic three-dimensional optical lattices. We show how the van Hove singularity of the free Fermi gas is smoothened by interactions and…