340 citations · 693 across the 20 of their papers we have counts for
9 papers · 1 filter
Induced interactions in the BCS-BEC crossover of two-dimensional Fermi gases with Rashba spin-orbit coupling
Juhee Lee, Dong-Hee Kim
We investigate the Gorkov--Melik-Barkhudarov (GM) correction to superfluid transition temperature in two-dimensional Fermi gases with Rashba spin-orbit coupling (SOC) across the SO…
Comment on Influence of induced interactions on superfluid properties of quasi-two-dimensional dilute Fermi gases with spin-orbit coupling
Juhee Lee, Dong-Hee Kim
In an article in 2013, Caldas et al. [Phys. Rev. A 88, 023615 (2013)] derived analytical expressions of the induced interaction within the scheme of Gorkov and Melik-Barkhudrov in…
Geometric origin of superfluidity in the Lieb lattice flat band
Aleksi Julku, Sebastiano Peotta, Tuomas Vanhala +2
The ground state and transport properties of the Lieb lattice flat band in the presence of an attractive Hubbard interaction are considered. It is shown that the superfluid weight…
Non-local quantum fluctuations and fermionic superfluidity in the imbalanced attractive Hubbard model
M. O. J. Heikkinen, D. -H. Kim, M. Troyer +1
We study fermionic superfluidity in strongly anisotropic optical lattices with attractive interactions utilizing the cluster DMFT method, and focusing in particular on the role of…
Moving perturbation in a one-dimensional Fermi gas
A. -M. Visuri, D. -H. Kim, J. J. Kinnunen +2
We simulate a balanced attractively interacting two-component Fermi gas in a one-dimensional lattice perturbed with a moving potential well or barrier. Using the time-evolving bloc…
Finite temperature stability and dimensional crossover of exotic superfluidity in lattices
Miikka O. J. Heikkinen, Dong-Hee Kim, Päivi Törmä
We investigate exotic paired states of spin-imbalanced Fermi gases in anisotropic lattices, tuning the dimension between one and three. We calculate the finite temperature phase di…
Topological transitions of gapless paired states in mixed-geometry lattices
Dong-Hee Kim, Joel S. J. Lehikoinen, Päivi Törmä
We propose a mixed-geometry system of fermionic species selectively confined in lattices of different geometry. We investigate how such asymmetry can lead to exotic multiband fermi…
Fulde-Ferrell--Larkin-Ovchinnikov state in the dimensional crossover between one- and three-dimensional lattices
Dong-Hee Kim, Päivi Törmä
We present a full phase diagram for the one-dimensional (1D) to three-dimensional (3D) crossover of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in an attractive Hubbard model…
Exotic superfluid states of lattice fermions in elongated traps
D. -H. Kim, J. J. Kinnunen, J. -P. Martikainen +1
We present real-space dynamical mean-field theory calculations for attractively interacting fermions in three-dimensional lattices with elongated traps. The critical polarization i…