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PreprintCC BY 4.0arXiv

Planckian dissipation per unit critical entropy as a coupling-free probe of the strange-metal bath

  • Dino Škrgić
  • Dejan Stojkovic
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Abstract

Strange metals pair a resistivity linear in temperature with a specific heat C/T rising logarithmically on cooling. We find that, if electrons scatter off a local critical bath, the coupling cancels in the ratio Q of their coefficients, leaving two measurable numbers: how slowly the bath relaxes, seen in photoemission or optics, and the share of critical entropy that relaxes current. Baths form classes: Q≤4.91 for a conformal bath, as SYK models confirm; 9--15 for the Yukawa--SYK field; and far less for Kondo lattices. LSCO, at Q≈9, exceeds the conformal bound, pointing to the Yukawa--SYK field.

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Cite

BibTeXRIS
BibTeX
@misc{skrgic2026planckian,
  title = {{Planckian dissipation per unit critical entropy as a coupling-free probe of the strange-metal bath}},
  author = {Dino Škrgić and Dejan Stojkovic},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.35939},
  eprint = {2610.35939},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.35939},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Planckian dissipation per unit critical entropy as a coupling-free probe of the strange-metal bath
AU  - Dino Škrgić
AU  - Dejan Stojkovic
PY  - 2026
DA  - 2026/10/23
PB  - arXiv
DO  - 10.48550/arxiv.2610.35939
UR  - https://arxiv.org/abs/2610.35939
AB  - Strange metals pair a resistivity linear in temperature with a specific heat C/T rising logarithmically on cooling. We find that, if electrons scatter off a local critical bath, the coupling cancels in the ratio Q of their coefficients, leaving two measurable numbers: how slowly the bath relaxes, seen in photoemission or optics, and the share of critical entropy that relaxes current. Baths form classes: Q≤4.91 for a conformal bath, as SYK models confirm; 9--15 for the Yukawa--SYK field; and far less for Kondo lattices. LSCO, at Q≈9, exceeds the conformal bound, pointing to the Yukawa--SYK field.
ER  -