Photoemission "experiments" on holographic superconductors

TL;DR

This paper investigates how a superconducting condensate influences holographic Fermi surfaces, revealing stable quasiparticles with a gap and phenomenological similarities to cuprates, especially in non-Fermi liquid normal states.

Contribution

It demonstrates the emergence of stable quasiparticles in holographic superconductors with a specific fermion-condensate coupling, highlighting new insights into strongly correlated systems.

Findings

Stable quasiparticles with a gap appear in the condensed phase.

Phenomenology resembles cuprates, especially in non-Fermi liquid normal states.

Condensate induces significant changes in holographic Fermi surfaces.

Abstract

We study the effects of a superconducting condensate on holographic Fermi surfaces. With a suitable coupling between the fermion and the condensate, there are stable quasiparticles with a gap. We find some similarities with the phenomenology of the cuprates: in systems whose normal state is a non-Fermi liquid with no stable quasiparticles, a stable quasiparticle peak appears in the condensed phase.