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Non-Fermi liquids from holography

Author(s)
Liu, Hong; McGreevy, John; Vegh, David
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Abstract
We report on a potentially new class of non-Fermi liquids in (2+1)-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.
Date issued
2011-03
URI
http://hdl.handle.net/1721.1/65565
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Liu, Hong, John McGreevy, and David Vegh. “Non-Fermi Liquids from Holography.” Physical Review D 83.6 (2011) © 2011 American Physical Society
Version: Final published version
ISSN
1550-7998
1550-2368

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