27 citations · 131 across the 8 of their papers we have counts for
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Superfluid phases of fermions with hybridized and orbitals
Shaoyu Yin, J. E. Baarsma, M. O. J. Heikkinen +2
We explore the superfluid phases of a two-component Fermi mixture with hybridized orbitals in optical lattices. We show that there exists a general mapping of this system to the Li…
Condensation phenomena in plasmonics
J. -P. Martikainen, M. O. J. Heikkinen, P. Törmä
We study arrays of plasmonic nanoparticles combined with quantum emitters, quantum plasmonic lattices, as a platform for room temperature studies of quantum many-body physics. We o…
Superfluidity and Density Order in a Bilayer Extended Hubbard Model
Tuomas I. Vanhala, Jildou E. Baarsma, Miikka O. J. Heikkinen +3
We use cluster dynamical mean field theory to study the phase diagram of the square lattice bilayer Hubbard model with an interlayer interaction. The layers are populated by two-co…
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…
Tunable critical supercurrent and spin-asymmetric Josephson effect in superlattices
Juha M. Kreula, Miikka O. J. Heikkinen, Francesco Massel +1
Combining the Josephson effect with magnetism, or spin dependence in general, creates novel physical phenomena. The spin-asymmetric Josephson effect is a predicted phenomenon where…
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…
Collective modes and the speed of sound in the Fulde-Ferrell-Larkin-Ovchinnikov state
M. O. J. Heikkinen, P. Törmä
We consider the density response of a spin-imbalanced ultracold Fermi gas in an optical lattice in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. We calculate the collective mo…
Spin-asymmetric Josephson effect
M. O. J. Heikkinen, F. Massel, J. Kajala +3
The Josephson effect is a manifestation of the macroscopic phase coherence of superconductors and superfluids. We propose that with ultracold Fermi gases one can realise a spin-asy…