Improved Green's function measurement for hybridization expansion quantum Monte Carlo
- We present an algorithm for measurement of the Green’s function in the hybridization expansion continuous-time quantum Monte-Carlo method based on continuous estimators. Compared to the standard method, the present algorithm has a similar or better accuracy with an improvement notable especially at low perturbation orders and high frequencies. The resulting statistical noise is weakly correlated so high-accuracy data for the numerical analytical continuation can be produced.
| Author: | Pavel Augustinský, Jan Kuneš |
|---|---|
| Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/122229 |
| ISSN: | 0010-4655OPAC |
| Parent Title (English): | Computer Physics Communications |
| Publisher: | Elsevier BV |
| Place of publication: | Amsterdam |
| Type: | Article |
| Language: | English |
| Year of first Publication: | 2013 |
| Publishing Institution: | Universität Augsburg |
| Release Date: | 2025/05/23 |
| Volume: | 184 |
| Issue: | 9 |
| First Page: | 2119 |
| Last Page: | 2126 |
| DOI: | https://doi.org/10.1016/j.cpc.2013.04.005 |
| Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Theoretische Physik III | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
