English

Chiral 2D "Strange Metals" from N = 4 SYM

High Energy Physics - Theory 2015-06-22 v1

Abstract

Familiar field theories may contain closed subsectors made out of only fermions, which can be used to explore new and unusual phases of matter in lower dimensions. We focus on the fermionic su(1,1) sector in N=4 SYM and on its ground states, which are Fermi surface states/operators. By computing their spectrum to order (gYM2N)2(g_{YM}^2 N)^2, we argue that fluctuations around this fermi surface, within the sector and in the limit kFk_F\rightarrow\infty, are governed by a chiral 1+1 dimensional sector of the "strange metal" coset SU(N)NSU(N)N/SU(N)2NSU(N)_N \otimes SU(N)_N/SU(N)_{2N}. On the gravity side, the conjectured dual configuration is an S=0S=0 degeneration of a rotating black hole. On general grounds we expect that the near horizon excitations of (S=0,Ω=1,J)(S=0,\Omega=1,J\rightarrow\infty) degenerations of black holes will be governed by a chiral sector of a 1+1 CFT.

Keywords

Cite

@article{arxiv.1408.3862,
  title  = {Chiral 2D "Strange Metals" from N = 4 SYM},
  author = {Micha Berkooz and Prithvi Narayan and Amir Zait},
  journal= {arXiv preprint arXiv:1408.3862},
  year   = {2015}
}

Comments

44 pages

R2 v1 2026-06-22T05:31:30.232Z