Abstract
We discuss the Monte Carlo simulation of coupled spin-fermion systems in the context of numerical simulations of the one-dimensional Kondo lattice. We first discuss the Kondo lattice Hamiltonian itself, and then present the technique used for its simulation. We next present numerical results for the one-dimensional symmetric Kondo lattice, obtained by extrapolating in imaginary-time increment and lattice size to obtain controlled estimates for various quantities in the thermodynamic limit. In particular, we compare spin correlations with RKKY predictions and two-impurity data, and note the opening of a “Kondo gap” as the temperature is lowered.
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Fye, R.M. (1993). Simulating Spin-Fermion Systems: Kondo Lattice Results. In: Landau, D.P., Mon, K.K., Schüttler, HB. (eds) Computer Simulation Studies in Condensed-Matter Physics IV. Springer Proceedings in Physics, vol 72. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84878-0_10
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DOI: https://doi.org/10.1007/978-3-642-84878-0_10
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