Dresden 2017 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 35: Low-Dimensional Systems: 2D - Theory

TT 35.4: Talk

Tuesday, March 21, 2017, 14:45–15:00, HSZ 304

Comparison Between the Hybrid and Auxiliary Field Quantum Monte Carlo Algorithms in Condensed Matter — •Stefan Beyl, Florian Goth, and Fakher F. Assaad — Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Deutschland

The Hybrid Quantum Monte Carlo (HQMC) is an established and successfully used algorithm in the lattice gauge community. A better scaling and lower memory requirements awake the hope to access larger system sizes than with the auxiliary field methods, which are generically used in condensed matter. We present results of a detailed comparisons between HQMC and auxiliary field Quantum Monte Carlo simulations on the Hubbard model. Furthermore, we show HQMC results for electron phonon simulations.