Gapped Fermions in Top-down Holographic Superconductors
arXiv:1609.07186 · doi:10.1103/PhysRevD.95.086005
Abstract
We use holography to compute spectral functions of certain fermionic operators in three different finite-density, zero-temperature states of ABJM theory with a broken U(1) symmetry. In each of the three states, dual to previously studied domain wall solutions of four-dimensional gauged supergravity, we find that the fermionic operators have gapped spectra. In one case the gap can be traced to the small charge of the fermions, while in the other cases it is due to a particular interaction that mixes particles and holes.
39 pages, 10 figures
References in corpus (10)
- N=6 superconformal Chern-Simons-matter theories, M2-branes and their gravity duals
- Building an AdS/CFT superconductor
- Holographic superconductivity in M-Theory
- Real-time response in AdS/CFT with application to spinors
- Supergravity Instabilities of Non-Supersymmetric Quantum Critical Points
- Fermionic Operator Mixing in Holographic p-wave Superfluids
- Low-temperature behavior of the Abelian Higgs model in anti-de Sitter space
- The Spin of Holographic Electrons at Nonzero Density and Temperature
- Fermi surface behavior in the ABJM M2-brane theory
- Fermionic Response in Finite-Density ABJM Theory with Broken Symmetry