Isolated zeros destroy Fermi surface in holographic models with a lattice
Abstract We study the fermionic spectral density in a strongly correlated quantum system described by a gravity dual. In the presence of periodically modulated chemical potential, which models the effect of the ionic lattice, we explore the shapes of the corresponding Fermi surfaces, defined by the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-01-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2020)151 |
| _version_ | 1818561280240254976 |
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| author | Floris Balm Alexander Krikun Aurelio Romero-Bermúdez Koenraad Schalm Jan Zaanen |
| author_facet | Floris Balm Alexander Krikun Aurelio Romero-Bermúdez Koenraad Schalm Jan Zaanen |
| author_sort | Floris Balm |
| collection | DOAJ |
| description | Abstract We study the fermionic spectral density in a strongly correlated quantum system described by a gravity dual. In the presence of periodically modulated chemical potential, which models the effect of the ionic lattice, we explore the shapes of the corresponding Fermi surfaces, defined by the location of peaks in the spectral density at the Fermi level. We find that at strong lattice potentials sectors of the Fermi surface are unexpectedly destroyed and the Fermi surface becomes an arc-like disconnected manifold. We explain this phenomenon in terms of a collision of the Fermi surface pole with zeros of the fermionic Green’s function, which are explicitly computable in the holographic dual. |
| first_indexed | 2024-12-14T00:48:48Z |
| format | Article |
| id | doaj.art-3a27a7694ba8415fb1031e0edf6617e1 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-14T00:48:48Z |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-3a27a7694ba8415fb1031e0edf6617e12022-12-21T23:23:57ZengSpringerOpenJournal of High Energy Physics1029-84792020-01-012020113510.1007/JHEP01(2020)151Isolated zeros destroy Fermi surface in holographic models with a latticeFloris Balm0Alexander Krikun1Aurelio Romero-Bermúdez2Koenraad Schalm3Jan Zaanen4Instituut-Lorentz for Theoretical Physics, ∆ITP, Leiden UniversityInstituut-Lorentz for Theoretical Physics, ∆ITP, Leiden UniversityInstituut-Lorentz for Theoretical Physics, ∆ITP, Leiden UniversityInstituut-Lorentz for Theoretical Physics, ∆ITP, Leiden UniversityInstituut-Lorentz for Theoretical Physics, ∆ITP, Leiden UniversityAbstract We study the fermionic spectral density in a strongly correlated quantum system described by a gravity dual. In the presence of periodically modulated chemical potential, which models the effect of the ionic lattice, we explore the shapes of the corresponding Fermi surfaces, defined by the location of peaks in the spectral density at the Fermi level. We find that at strong lattice potentials sectors of the Fermi surface are unexpectedly destroyed and the Fermi surface becomes an arc-like disconnected manifold. We explain this phenomenon in terms of a collision of the Fermi surface pole with zeros of the fermionic Green’s function, which are explicitly computable in the holographic dual.https://doi.org/10.1007/JHEP01(2020)151Holography and condensed matter physics (AdS/CMT)Space-Time Symmetries |
| spellingShingle | Floris Balm Alexander Krikun Aurelio Romero-Bermúdez Koenraad Schalm Jan Zaanen Isolated zeros destroy Fermi surface in holographic models with a lattice Journal of High Energy Physics Holography and condensed matter physics (AdS/CMT) Space-Time Symmetries |
| title | Isolated zeros destroy Fermi surface in holographic models with a lattice |
| title_full | Isolated zeros destroy Fermi surface in holographic models with a lattice |
| title_fullStr | Isolated zeros destroy Fermi surface in holographic models with a lattice |
| title_full_unstemmed | Isolated zeros destroy Fermi surface in holographic models with a lattice |
| title_short | Isolated zeros destroy Fermi surface in holographic models with a lattice |
| title_sort | isolated zeros destroy fermi surface in holographic models with a lattice |
| topic | Holography and condensed matter physics (AdS/CMT) Space-Time Symmetries |
| url | https://doi.org/10.1007/JHEP01(2020)151 |
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