Does spatially random Yukawa coupling explain strange-metal transport quantitatively?
In plain words
A recent theory proposes that electrons scattering off critical fluctuations whose coupling strength varies randomly in space give resistance linear in temperature; it needs quantitative tests against data.
Precise statement
In the two-dimensional model of a Fermi surface coupled to a critical scalar boson with spatially random Yukawa coupling (Patel, Guo, Esterlis, Sachdev 2023), compute $\rho(T)$, the optical conductivity $\sigma(\omega, T)$ and the magnetoresistance, and compare with cuprate data near $p*$. An answer confirms or excludes the model by quantitative comparison of the $T$-linear slope, the $\omega/T$ dependence of $\sigma$, and the residual resistivity.
What would settle it
Fits of the model with parameters constrained by independent data to resistivity, optics and magnetotransport of one cuprate at $p*$.
Parent problems
- Special case of Microscopic origin of T-linear resistivity in strange metals · open · from revision 1 The parent was revised since revision 1: it now states another question.
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