Correlation effects in spin models in the presence of a spin bath
Strongly Correlated Electrons
2019-09-23 v2 Other Condensed Matter
Abstract
We analyze the effect of a bath of spins interacting with a spin system in terms of the equation of motion technique. We show that this formalism can be used with general spin systems and baths, and discuss the concrete case of a Quantum Ising model longitudinally coupled to the bath. We show how the uncorrelated solutions change when spin-spin correlations are included, the properties of the quasiparticle excitations and the effect of internal dynamics in the spin bath.
Keywords
Cite
@article{arxiv.1811.07681,
title = {Correlation effects in spin models in the presence of a spin bath},
author = {Álvaro Gómez-León and Tim Cox and Philip Stamp},
journal= {arXiv preprint arXiv:1811.07681},
year = {2019}
}
Comments
Main text and Appendix