Holographic Fermi surfaces and bulk dipole couplings
arXiv:1102.3908
Abstract
Non-Fermi liquids can be studied using holographic duality. The low energy physics of a holographic Fermi surface is controlled by an emergent scale invariance. After reviewing these developments, we generalize the holographic calculation to include in the bulk action the leading irrelevant operator, which is a dipole coupling between the spinor field and the background gauge field. We find that this dipole coupling changes the attainable low-energy scaling dimensions, and changes the locations of the Fermi surfaces in momentum space. The structure of the holographic framework for non-Fermi liquids is, however, robust under this deformation.
22 pages, many figures; contribution to RPMBT15. v2: added refs; substantially improved comments on related work, both politically and scientifically
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- Holographic non-relativistic fermionic fixed point and bulk dipole coupling
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- Fermi-like Liquid From Einstein-DBI-Dilaton System
- Charged Lifshitz black hole and probed Lorentz-violation fermions from holography