8 citations · 12 across the 11 of their papers we have counts for
3 papers · 1 filter
Nonequilibrium Steady State Full Counting Statistics in the Noncrossing Approximation
Ido Zemach, Andre Erpenbeck, Emanuel Gull +1
Quantum transport is often characterized not just by mean observables like the particle or energy current, but by their fluctuations and higher moments, which can act as detailed p…
Feynman diagrammatics based on discrete pole representations: A path to renormalized perturbation theories
Daria Gazizova, Lei Zhang, Emanuel Gull +1
By merging algorithmic Matsubara integration with discrete pole representations we present a procedure to generate fully analytic closed form results for impurity problems at fixed…
Steady-state properties of multi-orbital systems using quantum Monte Carlo
Andre Erpenbeck, Thomas Blommel, Lei Zhang +3
A precise dynamical characterization of quantum impurity models with multiple interacting orbitals is challenging. In quantum Monte Carlo methods, this is embodied by sign problems…