Work

Diagrammatic Monte Carlo simulation of nonequilibrium systems

Year: 2009

Type: article

Abstract: We generalize the recently developed diagrammatic Monte Carlo techniques for quantum impurity models from an imaginary time to a Keldysh formalism suitable for real-time and nonequilibrium calculations. Both weak-coupling and strong-coupling based methods are introduced, analyzed, and applied to the study of transport and relaxation dynamics in interacting quantum dots.

Source: Physical Review B

DOI: 10.1103/physrevb.79.035320

Authors: Philipp Werner, Takashi Oka, Andrew J. Millis

Institutions: ETH Zurich, The University of Tokyo, Columbia University

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Eidgenössische Technische Hochschule Zürich, Division of Materials Research

Awards: Diagrammatic Monte Carlo methods for fermions, Non Fermi Liquid Physics and Quantum Critical Phenomena