A Holographic Flat Band
arXiv:1108.1381 · doi:10.1007/JHEP11(2011)125
Abstract
We describe a novel implementation of non-relativistic fermions in AdS/CFT by imposing Lorentz violating boundary conditions for a Dirac spinor in AdS4. The dual boundary theory is scale invariant and exhibits a number of interesting properties, including a dispersionless flat band of gapless excitations.
21 Pages, 15 Figures. v2: Reference and Acknowledgement added