Chebyshev matrix product state impurity solver for dynamical mean-field theory - Archive ouverte HAL Access content directly
Journal Articles Biophysical Reviews and Letters Year : 2014

Chebyshev matrix product state impurity solver for dynamical mean-field theory

(1) , (2) , (3) , (1)
1
2
3

Abstract

We compute the spectral functions for the two-site dynamical cluster theory and for the two-orbital dynamical mean-field theory in the density-matrix renormalization group (DMRG) framework using Chebyshev expansions represented with matrix product states (MPS). We obtain quantitatively precise results at modest computational effort through technical improvements regarding the trun-cation scheme and the Chebyshev rescaling procedure. We furthermore establish the relation of the Chebyshev iteration to real-time evolution, and discuss technical aspects as computation time and implementation in detail.
Fichier principal
Vignette du fichier
1407.1622v1.pdf (957.19 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

cea-01232791 , version 1 (24-11-2015)

Identifiers

Cite

F. Alexander Wolf, Ian P. Mcculloch, Olivier Parcollet, Ulrich Schollwöck. Chebyshev matrix product state impurity solver for dynamical mean-field theory. Biophysical Reviews and Letters, 2014, 90, pp.115124. ⟨10.1103/PhysRevB.90.115124⟩. ⟨cea-01232791⟩
24 View
184 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More