Finite-temperature numerical renormalization group study of the Mott transition
By R. Bulla, T. Costi, D. Vollhardt. 2000
207 citations recorded by the source corpus.
Wilson’s numerical renormalization group method for the calculation of dynamic properties of impurity models is generalized to investigate the effective impurity model of the dynamical mean-field theory at finite temperatures. We calculate the spectral function and self-energy for the Hubbard model on a Bethe lattice with infinite coordination number directly on the real-frequency axis and investigate the phase diagram for the Mott-Hubbard metal-insulator transition. While for T,Tc’0.02W (W: bandwidth! we find hysteresis with first-order transitions both at Uc1 ~defining the insulator to metal transition! and at Uc2 ~defining the metal to insulator transition! ,a tT.Tc there is a smooth crossover from metalliclike to insulatinglike solutions.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/1503eed12afd3008b244ae240461b864e5caec2f
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Numerical renormalization group method for quantum impurity systems (2007, methodology): “The first applications of the NRG within the DMFT framework concentrated on the Mott transition in the Hubbard model and accurate results could be obtained for both T = 0 (Bulla, 1999; Sakai and Kuramoto, 1994) and finite temperatures (Bulla et al., 2001).”
- Quantum cluster theories (2004, background): “…direct calculation of the one-particle self-energy from the NRG (Bulla et al., 1998) triggered a variety of applications within the DMFT framework (Bulla, 1999; Bulla et al., 2001; Pruschke et al., 2000; Pruschke and Zitzler, 2003; Zitzler et al., 2002, 2003) at both T = 0 and finite temperatures.”