325 citations · 2.9k across the 78 of their papers we have counts for
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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…
Convexity of the entanglement energy of SU()-symmetric fermions with attractive interactions
Joaquín E. Drut, William J. Porter
The positivity of the probability measure of attractively interacting systems of -component fermions enables the derivation of an exact convexity property for the ground-state…
Fermi gases with imaginary mass imbalance and the sign problem in Monte Carlo calculations
Dietrich Roscher, Jens Braun, Jiunn-Wei Chen +1
Fermi gases in strongly coupled regimes, such as the unitary limit, are inherently challenging for many-body methods. Although much progress has been made with purely analytic meth…
Imaginary polarization as a way to surmount the sign problem in ab initio calculations of spin-imbalanced Fermi gases
Jens Braun, Jiunn-Wei Chen, Jian Deng +4
From ultracold atoms to quantum chromodynamics, reliable ab initio studies of strongly interacting fermions require numerical methods, typically in some form of quantum Monte Carlo…
Lattice methods for strongly interacting many-body systems
Joaquín E. Drut, Amy N. Nicholson
Lattice field theory methods, usually associated with non-perturbative studies of quantum chromodynamics, are becoming increasingly common in the calculation of ground-state and th…
Improved lattice operators for non-relativistic fermions
Joaquín E. Drut
In this work I apply a recently proposed improvement procedure, originally conceived to reduce finite lattice spacing effects in transfer matrices for dilute Fermi systems, to tuni…