Non-equilibrium quantum dynamics

How can we tame the infamous dynamical sign problem in quantum Monte Carlo calculations and extend obtainable timescales in simulations of currents and time-resolved correlation functions?

Publications

• P. Kubiczek, A. N. Rubtsov, A. I. Lichtenstein: Exact real-time dynamics of single-impurity Anderson model from a single-spin hybridization-expansion, SciPost Phys. 7, 016 (2019) [Select label]

Posters

• Continuous-time quantum Monte Carlo impurity solvers for nonequilibrium dynamics of strongly correlated electronic systems, Frontiers of Condensed Matter, Les Houches 2017
• CT-1/2-HYB-QMC: a new solver for time-dependent Anderson impurity, Strongly Correlated Materials: Experiments and Computation, Tel Aviv 2018

Presentations

• Quantum matter out of equilibrium - pathway to technological breakthrough?, Science: Polish Perspectives, Berlin 2017 [general audience]
• Quantum Monte Carlo Methods. Focus: impurity solvers, SFB 925 Workshop on Numerical Methods, Hamburg 2018

Code

• github.com/patryk-kubiczek/noneq-cthalfhyb