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Berlin 2012 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 45: Correlated Electrons: Poster Session

TT 45.44: Poster

Thursday, March 29, 2012, 15:00–19:00, Poster B

(contribution withdrawn)

Continuous-time quantum Monte Carlo investigation of the metallic state near a Mott insulator — •Junya Otsuki1,2 and Dieter Vollhardt11Theoretische Physik III, Zentrum für Elektronische Korrelationen und Magnetismus, Universität Augsburg — 2Department of Physics, Tohoku University, Sendai, Japan

Motivated by a recently developed theory of extremely correlated Fermi liquids [1], we investigate the t-J model close to half-filling using the extended dynamical mean-field theory in the presence of fermionic and bosonic baths. The effective impurity model is solved by the continuous-time quantum Monte Carlo (CT-QMC) method which we extend to include the spin-boson coupling in the U=∞ Anderson model. Results for the coherence temperature and the single-particle spectra close to the half-filling are presented.
B. S. Shastry, Phys. Rev. Lett. 107, 056403 (2011).

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