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Holographic non-Fermi-liquid fixed points

Author(s)
Faulkner, Thomas; Iqbal, Nabil; Liu, Hong; McGreevy, John; Vegh, David
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Abstract
Techniques arising from string theory can be used to study assemblies of strongly interacting fermions. Via this ‘holographic duality’, various strongly coupled many-body systems are solved using an auxiliary theory of gravity. Simple holographic realizations of finite density exhibit single-particle spectral functions with sharp Fermi surfaces, of a form distinct from those of the Landau theory. The self-energy is given by a correlation function in an infrared (IR) fixed-point theory that is represented by a two-dimensional anti de Sitter space (AdS2) region in the dual gravitational description. Here, we describe in detail the gravity calculation of this IR correlation function.
Date issued
2011-04
URI
http://hdl.handle.net/1721.1/71268
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Philosophical Transactions of The Royal Society A Mathematical Physical and Engineering Sciences
Publisher
Royal Society, The
Citation
Faulkner, T. et al. “Holographic non-Fermi-liquid fixed points.” Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 369.1941 (2011): 1640-1669.
Version: Author's final manuscript
ISSN
1471-2962

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