Soft Modes, Localization, and Two-Level Systems in Spin Glasses. Baity-Jesi, M., Martín-Mayor, V., Parisi, G., & Perez-Gaviro, S. Physical Review Letters, American Physical Society, 2015. cited By 25
Paper doi abstract bibtex In the three-dimensional Heisenberg spin glass in a random field, we study the properties of the inherent structures that are obtained by an instantaneous cooling from infinite temperature. For a not too large field the density of states g(ω) develops localized soft plastic modes and reaches zero as ω4 (for large fields a gap appears). When we perturb the system adding a force along the softest mode, one reaches very similar minima of the energy, separated by small barriers, that appear to be good candidates for classical two-level systems. © 2015 American Physical Society.
@ARTICLE{Baity-Jesi2015,
author={Baity-Jesi, M. and Martín-Mayor, V. and Parisi, G. and Perez-Gaviro, S.},
title={Soft Modes, Localization, and Two-Level Systems in Spin Glasses},
journal={Physical Review Letters},
year={2015},
volume={115},
number={26},
doi={10.1103/PhysRevLett.115.267205},
art_number={267205},
note={cited By 25},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953333201&doi=10.1103%2fPhysRevLett.115.267205&partnerID=40&md5=d0a280faba98c5fc44863d43d4a2d0b1},
abstract={In the three-dimensional Heisenberg spin glass in a random field, we study the properties of the inherent structures that are obtained by an instantaneous cooling from infinite temperature. For a not too large field the density of states g(ω) develops localized soft plastic modes and reaches zero as ω4 (for large fields a gap appears). When we perturb the system adding a force along the softest mode, one reaches very similar minima of the energy, separated by small barriers, that appear to be good candidates for classical two-level systems. © 2015 American Physical Society.},
publisher={American Physical Society},
issn={00319007},
coden={PRLTA},
pubmed_id={26765021},
document_type={Article},
source={Scopus},
}
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