Does spatially random Yukawa coupling explain strange-metal transport quantitatively? · revision history
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- Title
- Does spatially random Yukawa coupling explain strange-metal transport quantitatively
- Plain
- 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
- 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.
- Settled by
- Fits of the model with parameters constrained by independent data to resistivity, optics and magnetotransport of one cuprate at $p*$.
- Kind
- well-posed
- Answer type
- yes-no
- References
- (empty)
- Literature status
- open
- Status note
- (empty)
- Posed since
- 2023