Conductance of quantum impurity models from quantum monte carlo
Journal Article
The conductance of two Anderson impurity models, one with twofold and another with fourfold degeneracy, representing two types of quantum dots, is calculated using a world-line quantum Monte Carlo (QMC) method. Extrapolation of the imaginary time QMC data to zero frequency yields the linear conductance, which is then compared to numerical renormalization-group results in order to assess its accuracy. We find that the method gives excellent results at low temperature (T TK) throughout the mixed-valence and Kondo regimes but it is unreliable for higher temperature. © 2010 The American Physical Society.
Full Text
Duke Authors
Cited Authors
- Liu, DE; Chandrasekharan, S; Baranger, HU
Published Date
- October 28, 2010
Published In
Volume / Issue
- 82 / 16
Electronic International Standard Serial Number (EISSN)
- 1550-235X
International Standard Serial Number (ISSN)
- 1098-0121
Digital Object Identifier (DOI)
- 10.1103/PhysRevB.82.165447
Citation Source
- Scopus