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PreprintCC BY 4.0arXiv

Overview of the Theory of Extremely Correlated Fermi Liquids

  • B Sriram Shastry
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Abstract

The Extremely Correlated Fermi Liquids (ECFL) theory is reviewed as a framework for understanding the t-J model in metallic systems close to the Mott insulating limit. This overview presents the underlying ideas and the resulting equations in a form accessible to nonexperts. We compare theoretical results with all available resistivity data for single-layer High-Tc systems, and with some spectral data. The highlighted results include a density dependent quasilinear T-dependence in resistivity, an unusually small quasiparticle weight, and distinct low-temperature emergent scales that dominate transport, thermodynamics and spectral properties of single-layer High Tc systems. Suggestions are made for further experiments to probe the physics of these challenging quantum many-body systems.

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Cite

BibTeXRIS
BibTeX
@misc{shastry2026overview,
  title = {{Overview of the Theory of Extremely Correlated Fermi Liquids}},
  author = {B Sriram Shastry},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2606.13541},
  eprint = {2606.13541},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.13541},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Overview of the Theory of Extremely Correlated Fermi Liquids
AU  - B Sriram Shastry
PY  - 2026
DA  - 2026/09/14
PB  - arXiv
DO  - 10.48550/arxiv.2606.13541
UR  - https://arxiv.org/abs/2606.13541
AB  - The Extremely Correlated Fermi Liquids (ECFL) theory is reviewed as a framework for understanding the t-J model in metallic systems close to the Mott insulating limit. This overview presents the underlying ideas and the resulting equations in a form accessible to nonexperts. We compare theoretical results with all available resistivity data for single-layer High-T_c systems, and with some spectral data. The highlighted results include a density dependent quasilinear T-dependence in resistivity, an unusually small quasiparticle weight, and distinct low-temperature emergent scales that dominate transport, thermodynamics and spectral properties of single-layer High T_c systems. Suggestions are made for further experiments to probe the physics of these challenging quantum many-body systems.
ER  -