2 papers
cond-mat.quant-gas2018
Resummation of diagrammatic series with zero convergence radius for strongly correlated fermions
Riccardo Rossi, Takahiro Ohgoe, Kris Van Houcke +1
We demonstrate that summing up series of Feynman diagrams can yield unbiased accurate results for strongly-correlated fermions even when the convergence radius vanishes. We conside…
cond-mat.str-el2005
Interaction-induced adiabatic cooling and antiferromagnetism of cold fermions in optical lattices
F. Werner, O. Parcollet, A. Georges +1
We propose an interaction-induced cooling mechanism for two-component cold fermions in an optical lattice. It is based on an increase of the ``spin'' entropy upon localisation, an…