306 citations · 2.1k across the 48 of their papers we have counts for
6 papers · 1 filter
Interaction-induced topological superconductivity in antiferromagnet-superconductor junctions
Senna S. Luntama, Päivi Törmä, Jose L. Lado
We predict that junctions between an antiferromagnetic insulator and a superconductor provide a robust platform to create a one-dimensional topological superconducting state. Its e…
Quasiparticles, coherence and nonlinearity: exact simulations of RF-spectroscopy of strongly interacting one-dimensional Fermi gases
M. J. Leskinen, V. Apaja, J. Kajala +1
We consider RF-spectroscopy of ultracold Fermi gases by exact simulations of the many-body state and the coherent dynamics in one dimension. Deviations from the linear response sum…
FFLO state in 1, 2, and 3 dimensional optical lattices combined with a non-uniform background potential
T. K. Koponen, T. Paananen, J. -P. Martikainen +2
We study the phase diagram of an imbalanced two-component Fermi gas in optical lattices of 1-3 dimensions, considering the possibilities of the FFLO, Sarma/breached pair, BCS and n…
Finite temperature phase diagram of a polarized Fermi gas in an optical lattice
T. K. Koponen, T. Paananen, J. -P. Martikainen +1
We present phase diagrams for a polarized Fermi gas in an optical lattice as a function of temperature, polarization, and lattice filling factor. We consider the Fulde-Ferrel-Larki…
Fermion pairing with spin-density imbalance in an optical lattice
T. Koponen, J. Kinnunen, J. -P. Martikainen +2
We consider pairing in a two-component atomic Fermi gas, in a three-dimensional optical lattice, when the components have unequal densities, i.e. the gas is polarized. We show that…
Quasi two-dimensional superfluid Fermi gases
J. -P. Martikainen, Paivi Torma
We study a quasi two-dimensional superfluid Fermi gas where the confinement in the third direction is due to a strong harmonic trapping. We investigate the behavior of such a syste…