Drag force in asymptotically Lifshitz spacetimes

TL;DR

This paper computes the drag force in Lifshitz spacetimes with arbitrary dynamical exponent, revealing non-zero drag at zero and finite temperature, and explores implications for the DC conductivity of strange metals.

Contribution

It provides the first calculation of drag force in Lifshitz geometries with arbitrary z, linking holographic drag to strange metal conductivity.

Findings

Drag force is non-zero at zero temperature.

Drag force remains finite at finite temperature.

Implications for strange metal DC conductivity.

Abstract

We calculated drag force for asymptotically Lifshitz space times in (d + 2)-dimensions with arbitrary dynamical exponent $z$. We find that at zero and finite temperature the drag force has a non-zero value. Using the drag force calculations, we investigate the DC conductivity of strange metals.