Affiliation:
1. Flatiron Institute
2. Max Planck Institute for Polymer Research
3. Paul Scherrer Institut
4. Collège de France
5. Ecole Polytechnique
6. Université de Genève
7. CEA
Abstract
We present the mean field solution of the quantum and classical Heisenberg spin glasses, using the combination of a high precision numerical solution of the Parisi full replica symmetry breaking equations and a continuous time quantum Monte Carlo algorithm. We characterize the spin glass order and its low-energy excitations down to zero temperature. The Heisenberg spin glass has a rougher energy landscape than its Ising analog, and exhibits a very slow temperature evolution of its dynamical properties. We extend our analysis to the doped, metallic Heisenberg spin glass, which displays unexpectedly slow spin dynamics, reflecting the proximity to the melting quantum critical point and its associated Sachdev-Ye-Kitaev Planckian dynamics.
Published by the American Physical Society
2024
Funder
Simons Foundation
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Flatiron Institute
Humboldt fellowship
Publisher
American Physical Society (APS)
Cited by
2 articles.
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