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Continuous-Time Quantum Monte Carlo Algorithm for the Lattice Polaron

P E Kornilovitch
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Abstract

An efficient continuous-time path-integral Quantum Monte Carlo algorithm for the lattice polaron is presented. It is based on Feynman's integration of phonons and subsequent simulation of the resulting single-particle self-interacting system. The method is free from the finite-size and finite-time-step errors and works in any dimensionality and for any range of electron-phonon interaction. The ground-state energy and effective mass of the polaron are calculated for several models. The polaron spectrum can be measured directly by Monte Carlo, which is of general interest.

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BibTeXRIS

P E Kornilovitch. 1999-02-17. Continuous-Time Quantum Monte Carlo Algorithm for the Lattice Polaron. https://doi.org/10.1103/physrevlett.81.5382

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