Real-time dynamics at finite temperature by DMRG: A path-integral approach
| dc.creator | Sirker, J. | |
| dc.creator | Klümper, A. | |
| dc.date | 2005-04-05 | |
| dc.date.accessioned | 2026-07-07T03:04:26Z | |
| dc.date.available | 2026-07-07T03:04:26Z | |
| dc.description | We propose a path-integral variant of the DMRG method to calculate real-time correlation functions at arbitrary finite temperatures. To illustrate the method we study the longitudinal autocorrelation function of the $XXZ$-chain. By comparison with exact results at the free fermion point we show that our method yields accurate results up to a limiting time which is determined by the spectrum of the reduced density matrix. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0504091 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0504091 | |
| dc.identifier | Phys. Rev. B 71, 241101(R) (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.71.241101 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26134 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Real-time dynamics at finite temperature by DMRG: A path-integral approach | |
| dc.type | text |