Pomeranchuk instabilities in holographic metals
202037 pages
Published in:
- JHEP 05 (2021) 206,
- JHEP 21 (2020) 206
- Published: May 21, 2021
e-Print:
- 2101.01825 [hep-th]
View in:
Citations per year
0 Citations
Abstract: (Springer)
We develop a method to detect instabilities leading to nematic phases in strongly coupled metallic systems. We do so by adapting the well-known Pomeranchuk technique to a weakly coupled system of fermions in a curved asymptotically AdS bulk. The resulting unstable modes are interpreted as corresponding to instabilities on the dual strongly coupled holographic metal. We apply our technique to a relativistic 3 + 1-dimensional bulk with generic quartic fermionic couplings, and explore the phase diagram at zero temperature for finite values of the fermion mass and chemical potential, varying the couplings. We find a wide region of parameters where the system is stable, which is simply connected and localized around the origin of coupling space.Note:
- Replaced by final version, published in JHEP
- AdS-CFT Correspondence
- Holography and condensed matter physics (AdS/CMT)
- fermion: coupling
- potential: chemical
- temperature: 0
- stability
- strong coupling
- duality: holography
- metal
- critical phenomena
References(32)
Figures(25)
- [3]
- [4]
- [5]
- [6]
- [7]
- [8]
- [9]
- [10]
- [11]
- [12]
- [14]
- [15]
- [16]
- [17]
- [19]
- [20]
- [21]
- [23]
- [24]
- [25]