Cluster dynamical mean field analysis of the Mott transition

O. Parcollet, G. Biroli, G. Kotliar

Research output: Contribution to journalArticlepeer-review

133 Scopus citations


The cluster dynamic mean field theory (DMFT) was used for the investigation of the Mott transition. The cellular DMFT (CDMFT) approximation on a 2 × 2 square cluster of the one-band Hubbard model on a square lattice with and without frustration, was performed by solving the CDMFT equations with quantum Monte Carlo (QMC) method. No evidence for a finite temperature Mott transition was found in the absence of frustration. On the other hand, signatures of a finite temperature Mott transition were observed in a frustration model. It was also observed that a clear momentum dependence of the electron lifetime was developed on the Fermi surface as Mott transition was approached.

Original languageEnglish (US)
Article number226402
Pages (from-to)226402-1-226402-4
JournalPhysical review letters
Issue number22
StatePublished - Jul 4 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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