Josephson wormhole in coupled superconducting Yukawa-SYK metals
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911412591263744 |
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| author | Shankar, Aravindh S. Steenbergen, Jasper Plugge, Stephan Schalm, Koenraad |
| author_facet | Shankar, Aravindh S. Steenbergen, Jasper Plugge, Stephan Schalm, Koenraad |
| contents | We show that two Yukawa-SYK models with a weak tunneling contact can have an exotic hybrid superconducting thermofield-double-like state that is holographically dual to a traversable wormhole connecting two black holes with charged scalar hair. The hybrid superconducting thermo-field-double/wormhole state is distinguishable by anomalous scaling of revival oscillations in the fermionic Green's function, but also in a unique Andreev-revival in the anomalous Green's function. The existence of this TFD/wormhole state surprisingly shows that the some quantum critical effects can survive the phase transition to superconductivity. This Andreev-revival is in principle an accessible signature of the transition to the TFD/wormhole phase detectable in the ac-Josephson current. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_16907 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Josephson wormhole in coupled superconducting Yukawa-SYK metals Shankar, Aravindh S. Steenbergen, Jasper Plugge, Stephan Schalm, Koenraad Strongly Correlated Electrons Superconductivity High Energy Physics - Theory We show that two Yukawa-SYK models with a weak tunneling contact can have an exotic hybrid superconducting thermofield-double-like state that is holographically dual to a traversable wormhole connecting two black holes with charged scalar hair. The hybrid superconducting thermo-field-double/wormhole state is distinguishable by anomalous scaling of revival oscillations in the fermionic Green's function, but also in a unique Andreev-revival in the anomalous Green's function. The existence of this TFD/wormhole state surprisingly shows that the some quantum critical effects can survive the phase transition to superconductivity. This Andreev-revival is in principle an accessible signature of the transition to the TFD/wormhole phase detectable in the ac-Josephson current. |
| title | Josephson wormhole in coupled superconducting Yukawa-SYK metals |
| topic | Strongly Correlated Electrons Superconductivity High Energy Physics - Theory |
| url | https://arxiv.org/abs/2506.16907 |