Holographic non-Fermi-liquid fixed points
Author(s)Faulkner, Thomas; Iqbal, Nabil; Liu, Hong; McGreevy, John; Vegh, David
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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.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Philosophical Transactions of The Royal Society A Mathematical Physical and Engineering Sciences
Royal Society, The
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.
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