Symmetric Improved Estimators for Continuous-time Quantum Monte Carlo
- Date
- May 14, 2019
- Time
- 10:30 AM - 11:30 AM
- Speaker
- Josef Kaufmann
- Affiliation
- IFW Dresden / TU Wien
- Language
- en
- Main Topic
- Materialien
- Host
- Grit Rötzer
- Description
- We derive equations of motion for the multi-orbital Anderson impurity model, differentiating symmetrically with respect to all time arguments. The one- and two-particle Green's functions are thus related to correlators of up to six particles at four times. As an application we consider continuous-time quantum Monte Carlo simulations in the hybridization expansion, which hitherto suffered from notoriously high noise levels at large Matsubara frequencies. Employing the derived symmetric improved estimators overcomes this problem. .
- Links
Last modified: Jun 24, 2019, 3:24:10 PM
Location
Leibniz Institut für Festkörper- und Werkstoffforschung Dresden (D2E.27, IFW Dresden)Helmholtzstraße2001069Dresden
- Homepage
- http://www.ifw-dresden.de
Organizer
Leibniz Institut für Festkörper- und Werkstoffforschung DresdenHelmholtzstraße2001069Dresden
- Homepage
- http://www.ifw-dresden.de
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