Dynamically generated Mott gap from holography

Research output: Contribution to journalArticlepeer-review

Abstract

In the fermionic sector of top-down approaches to holographic systems, one generically finds that the fermions are coupled to gravity and gauge fields in a variety of ways, beyond minimal coupling. In this Letter, we take one such interaction-a Pauli, or dipole, interaction-and study its effects on fermion correlators. We find that this interaction modifies the fermion spectral density in a remarkable way. As we change the strength of the interaction, we find that spectral weight is transferred between bands, and beyond a critical value, a gap emerges in the fermion density of states. A possible interpretation of this bulk interaction then is that it drives the dynamical formation of a (Mott) gap, in the absence of continuous symmetry breaking.

Original languageEnglish (US)
Article number091602
JournalPhysical review letters
Volume106
Issue number9
DOIs
StatePublished - Mar 1 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Dynamically generated Mott gap from holography'. Together they form a unique fingerprint.

Cite this