Quantum Criticality and DBI Magneto-resistance

TL;DR

This paper employs the DBI action from string theory and holography to investigate magneto-resistance behaviors at quantum critical points with hyperscaling violation, revealing diverse scaling patterns including those observed in pnictides.

Contribution

It introduces a holographic approach using the DBI action to model magneto-resistance at quantum criticality with hyperscaling violation, uncovering new scaling behaviors.

Findings

Identifies a rich class of magneto-resistance scaling behaviors.

Recovers scaling results consistent with experimental data in pnictides.

Provides a theoretical framework linking string theory holography to condensed matter phenomena.

Abstract

We use the DBI action from string theory and holography to study the magneto-resistance at quantum criticality with hyperscaling violation. We find and analyze a rich class of scaling behaviors for the magneto-resistance. A special case describes the scaling results found in pnictides by Hayers et al. in~\cite{analytis}.