40 citations · 269 across the 15 of their papers we have counts for
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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…
Hard-Wall and Non-Uniform Lattice Monte Carlo Approaches to One-Dimensional Fermi Gases in a Harmonic Trap
Casey E. Berger, Joaquín E. Drut, William J. Porter
We present in detail two variants of the lattice Monte Carlo method aimed at tackling systems in external trapping potentials: a uniform-lattice approach with hard-wall boundary co…
Entanglement of Free Fermions and Bosons at Finite Temperature
Joaquín E. Drut, William J. Porter
We generalize techniques previously used to compute ground-state properties of one-dimensional noninteracting quantum gases to obtain exact results at finite temperature. We comput…
Ground-state energy, density profiles, and momentum distribution of attractively interacting 1D Fermi gases with hard-wall boundaries: a Monte Carlo study
J. R. McKenney, C. R. Shill, W. J. Porter +1
Motivated by the realization of hard-wall boundary conditions in experiments with ultracold atoms, we investigate the ground-state properties of spin-1/2 fermions with attractive i…
Entanglement, noise, and the cumulant expansion
Joaquín E. Drut, William J. Porter
We put forward a simpler and improved variation of a recently proposed method to overcome the signal-to-noise problem found in Monte Carlo calculations of the entanglement entropy…
A hybrid Monte Carlo approach to the entanglement entropy of interacting fermions
Joaquín E. Drut, William J. Porter
The Monte Carlo calculation of Rényi entanglement entropies of interacting fermions suffers from a well-known signal-to-noise problem, even for a large number of situation…
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…