Holographic metals and the fractionalized Fermi liquid

TL;DR

This paper establishes a connection between holographic metals near charged black holes in AdS space and the fractionalized Fermi liquid phase in the lattice Anderson model, revealing new insights into non-zero density spin liquids.

Contribution

It demonstrates a correspondence between holographic metals and fractionalized Fermi liquids, linking black hole physics with condensed matter phases.

Findings

Holographic metals exhibit properties similar to fractionalized Fermi liquids.

Certain gapless spin liquids can be realized as states at non-zero density.

The near-horizon AdS_2 x R^2 physics relates to specific spin liquid phases.

Abstract

We show that there is a close correspondence between the physical properties of holographic metals near charged black holes in anti-de Sitter (AdS) space, and the fractionalized Fermi liquid phase of the lattice Anderson model. The latter phase has a "small" Fermi surface of conduction electrons, along with a spin liquid of local moments. This correspondence implies that certain mean-field gapless spin liquids are states of matter at non-zero density realizing the near-horizon, AdS_2 x R^2 physics of Reissner-Nordstrom black holes.