38 citations · 145 across the 7 of their papers we have counts for
7 papers
Magnetic impurity in a one-dimensional few-fermion system
Lukas Rammelmüller, David Huber, Matija Čufar +3
We present a numerical analysis of spin- fermions in a one-dimensional harmonic potential in the presence of a magnetic point-like impurity at the center of the trap.…
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…
Exploring Bosonic and Fermionic Link Models on d tubes
Debasish Banerjee, Emilie Huffman, Lukas Rammelmüller
Quantum link models (QLMs) have attracted a lot of attention in recent times as a generalization of Wilson's lattice gauge theories (LGT), and are particularly suitable for realiza…
Pairing patterns in polarized unitary Fermi gases above the superfluid transition
Felipe Attanasio, Lukas Rammelmüller, Joaquín E. Drut +1
We non-perturbatively study pairing in the high-temperature regime of polarized unitary two-component Fermi gases by extracting the pair-momentum distribution and shot-noise correl…
Finite-temperature equation of state of polarized fermions at unitarity
Lukas Rammelmüller, Andrew C. Loheac, Joaquín E. Drut +1
We study in a nonperturbative fashion the thermodynamics of a unitary Fermi gas over a wide range of temperatures and spin polarizations. To this end, we use the complex Langevin m…
Ground state of the two-dimensional attractive Fermi gas: essential properties from few- to many-body
L. Rammelmüller, W. J. Porter, J. E. Drut
We calculate the ground-state properties of unpolarized two-dimensional attractive fermions in the range from few to many particles. Using first-principles lattice Monte Carlo meth…
Few-fermion systems in one dimension: Ground- and excited-state energies and contacts
L. Rammelmüller, W. J. Porter, A. C. Loheac +1
Using the lattice Monte Carlo method, we compute the energy and Tan's contact in the ground state as well as the first excited state of few- to many-fermion systems in a one-dimens…