F-electron spectral function near a quantum critical point
J. K. Freericks (Georgetown), V. Turkowski (Georgetown), and V. Zlatic, (Inst. of Physics, Zagreb, Croatia)
TL;DR
This paper computes the f-electron spectral function near a quantum critical point using a Keldysh formalism within the Falicov-Kimball model, analyzing behavior on hypercubic and Bethe lattices.
Contribution
It introduces a novel calculation of the spectral function near quantum criticality in the Falicov-Kimball model using Keldysh formalism.
Findings
Spectral function behavior near quantum critical point analyzed.
Differences observed between hypercubic and Bethe lattices.
Method provides new insights into electron dynamics at criticality.
Abstract
We calculate the f-electron spectral function using a Keldysh formalism for the Falicov-Kimball model in infinite dimensions. We study the region close to the quantum critical point on both the hypercubic and Bethe lattices.
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