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6 papers · 2 filters
Disordered structures in ultracold spin-imbalanced Fermi gas
Buğra Tüzemen, Tomasz Zawiślak, Gabriel Wlazłowski +1
We investigate properties of spin-imbalanced ultracold Fermi gas in a large range of spin polarizations at low temperatures. We present results of microscopic calculations based on…
Deriving density-matrix functionals for excited states
Julia Liebert, Christian Schilling
We initiate the recently proposed -ensemble one-particle reduced density matrix functional theory (-RDMFT) by deriving the first functional approxim…
Phase diagram and elementary excitations of strongly interacting droplets with non-local interactions
Maciej Łebek, Jakub Kopyciński, Wojciech Górecki +2
A one-dimensional bosonic gas with strong contact repulsion and attractive non-local interactions may form a quantum droplet with a flat-top density profile. We focus on a system i…
Ultrawide dark solitons and droplet-soliton coexistence in a dipolar Bose gas with strong contact interactions
Jakub Kopyciński, Maciej Łebek, Wojciech Górecki +1
We look into dark solitons in a quasi-1D dipolar Bose gas and in a quantum droplet. We derive the analytical solitonic solution of a Gross-Pitaevskii-like equation accounting for b…
Magnetically mediated hole pairing in fermionic ladders of ultracold atoms
Sarah Hirthe, Thomas Chalopin, Dominik Bourgund +6
Pairing of mobile charge carriers in doped antiferromagnets plays a key role in the emergence of unconventional superconductivity. In these strongly correlated materials, the pairi…
A modular implementation of an effective interaction approach for harmonically trapped fermions in 1D
Lukas Rammelmüller, David Huber, Artem G. Volosniev
We introduce a generic and accessible implementation of an exact diagonalization method for studying few-fermion models. Our aim is to provide a testbed for the newcomers to the fi…