Spectral weight suppression and Fermi arc-like features with strong holographic lattices

Sera Cremonini (Department of Physics, Lehigh University, Bethlehem, PA, 18018, U.S.A.) ; Li Li (CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190, China) ; Jie Ren (School of Physics, Sun Yat-Sen University, Guangzhou, 510275, China)

We investigate holographic fermions in uni-directional striped phases, where the breaking of translational invariance can be generated either spontaneously or explicitly. We solve the Dirac equation for a probe fermion in the associated background geometry. When the spatial modulation effect becomes sufficiently strong, we see a spectral weight suppression whenever the Fermi surface is larger than the first Brillouin zone. This leads to the gradual disappearance of the Fermi surface along the symmetry breaking direction, in all of the cases we have examined. This effect appears to be a generic consequence of strong inhomogeneities, independently of whether translational invariance is broken spontaneously or explicitly. The resulting Fermi surface is segmented and has features reminiscent of Fermi arcs.

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      "surname": "Ren", 
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Published on:
25 December 2019
Publisher:
Springer
Published in:
Journal of High Energy Physics , Volume 2019 (2019)
Issue 9
Pages 1-31
DOI:
https://doi.org/10.1007/JHEP09(2019)014
arXiv:
1906.02753
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

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