Speaker
Petar Sinilkov
(IAS-4, Forschungszentrum Jülich)
Description
Our central advance is an algorithm that simultaneously stabilizes the determinant and force calculations that holds to machine precision for very large $\beta$ (in units of inverse hopping) while scaling equally well with standard determinant QMC simulations of these systems. Furthermore, our formalism retains the full time-displaced (2-point) Greens function, allowing us to construct any $n$-body correlator, including those that contain disconnected diagrams. We demonstrate our formalism by presenting large $\beta = 90$ (corresponding to (low) room-temperature) Hubbard-model simulations of the molecules perylene and corannulene at different doping levels, and calculating one-, two- (exciton) and three-body (trion) correlators.
Author
Petar Sinilkov
(IAS-4, Forschungszentrum Jülich)
Co-authors
Prof.
Thomas Luu
(Forshungszentrum Jülich)
Johann Ostmeyer
(University Bonn)
Finn Temmen
(Forschungszentrum Jülich, IAS-4)
Marcel Rodekamp
(Universität Regensburg)