Skip to main content

Fermionic response in a zero entropy state of N=4 super-Yang-Mills

Author(s): DeWolfe, Oliver; Gubser, Steven S; Rosen, Christopher

To refer to this page use:
Abstract: We analyze fermionic response in the geometry holographically dual to zero-temperature N = 4 super-Yang-Mills theory with two equal nonvanishing chemical potentials, which is characterized by a singular horizon and zero ground state entropy. We show that fermionic fluctuations are completely stable within a gap in energy around a Fermi surface singularity, beyond which non-Fermi liquid behavior returns. This gap disappears abruptly once the final charge is turned on and is associated to a discontinuity in the corresponding chemical potential. We also show that the singular near-horizon geometry lifts to a smooth AdS(3) x R-3 and interpret the gap as a region where the quasiparticle momentum is spacelike in six dimensions due to the momentum component in the Kaluza-Klein direction, corresponding to the final charge.
Publication Date: 15-Feb-2015
Electronic Publication Date: 26-Feb-2015
Citation: DeWolfe, Oliver, Gubser, Steven S, Rosen, Christopher. (2015). Fermionic response in a zero entropy state of N=4 super-Yang-Mills. PHYSICAL REVIEW D, 91 (10.1103/PhysRevD.91.046011
DOI: doi:10.1103/PhysRevD.91.046011
ISSN: 1550-7998
EISSN: 1550-2368
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW D
Version: Final published version. This is an open access article.

Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.