Cornell University

This is a past event. Its details are archived for historical purposes.

The contact information may no longer be valid.

Please visit our current events listings to look for similar events by title, location, or venue.

A stability bound on the T-linear resistivity of conventional metals with Chaitanya Murthy (Stanford)

Friday, May 13, 2022 at 3:00pm

Virtual Event

A stability bound on the T-linear resistivity of conventional metals

Perturbative considerations account for the properties of conventional metals, including the range of temperatures T where the transport scattering rate is 1/τ_tr = 2πλT, where λ is a dimensionless strength of the electron-phonon coupling. The fact that measured values satisfy λ <~ 1 has been noted in the context of a possible "Planckian" bound on transport. However, since the electron-phonon scattering is quasi-elastic in this regime, no such Planckian considerations can be relevant. I will argue, based on Monte Carlo results on the Holstein model, that a different sort of bound is at play: a "stability" bound on λ consistent with metallic transport. I will then speculate that a qualitatively similar bound on the strength of residual interactions, which is often stronger than Planckian, may apply to metals more generally.





Streaming site:

Google Calendar iCal Outlook
Event Type




University Themes



physics, lassp, quantum_site, quantum_theory


Chaitanya Murthy

Speaker Affiliation


Recent Activity