Matthias Troyer

TL;DR: In this article, the authors present finite temperature B-DMFT phase diagrams for the bosonic Hubbard model on a 3d cubic and 2d square lattice, the condensate order parameter as a function of chemical potential, critical exponents for the condenate, the approach to the weakly interacting Bose gas regime for weak repulsions, and the kinetic energy as well as temperature.

TL;DR: In this paper, it is shown that for the average low-dimensional spin glass problem outside the spin glass phase, the exact ground state can be found in polynomial time, and a heuristic, general-purpose hierarchical approach for spin glasses on chimera graphs and lattices in two and three dimensions outperforms, to our knowledge, any other solver currently around, with significantly better scaling performance than simulated annealing.

TL;DR: In this article, the authors illustrate the subtleties of error estimation in Monte Carlo simulations using the Ehrenfest urn model and show how the smooth results of correlated sampling in Markov chains can fool one's perception of the accuracy of the data.

TL;DR: This work extends the existing methodology of creating Wannier tight-binding models from first-principles calculations by introducing the symmetrization post-processing step, which enables the production of Wanniers-like models that respect the asymmetries of the considered crystal.

TL;DR: In this paper, the authors present a software architecture for compiling quantum programs from a high-level language program to hardware-specific instructions, which can be targeted to any specific quantum hardware implementation.