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Author Huh, Yejin ♦ Sachdev, Subir
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-06-01
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Condensed Matter - Strongly Correlated Electrons ♦ Condensed Matter - Superconductivity ♦ physics:cond-mat
Abstract We examine the quantum theory of the spontaneous breaking of lattice rotation symmetry in d-wave superconductors on the square lattice. This is described by a field theory of an Ising nematic order parameter coupled to the gapless fermionic quasiparticles. We determine the structure of the renormalization group to all orders in a 1/N_f expansion, where N_f is the number of fermion spin components. Asymptotically exact results are obtained for the quantum critical theory in which, as in the large N_f theory, the nematic order has a large anomalous dimension, and the fermion spectral functions are highly anisotropic.
Description Reference: Physical Review B 78, 064512 (2008)
Educational Use Research
Learning Resource Type Article
Page Count 17


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