Abstract
We report on a potentially new class of non-Fermi liquids in ()-dimensions. They are identified via the response functions of composite fermionic operators in a class of strongly interacting quantum field theories at finite density, computed using the AdS/CFT correspondence. We find strong evidence of Fermi surfaces: gapless fermionic excitations at discrete shells in momentum space. The spectral weight exhibits novel phenomena, including particle-hole asymmetry, discrete scale invariance, and scaling behavior consistent with that of a critical Fermi surface postulated by Senthil.
3 More- Received 7 January 2011
DOI:https://doi.org/10.1103/PhysRevD.83.065029
© 2011 American Physical Society