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| Format: | Preprint |
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2026
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| Online-Zugang: | https://arxiv.org/abs/2604.03185 |
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| _version_ | 1866917383033061376 |
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| author | Karch, Andreas Sanyal, Ainesh Spieler, Ryan C. Wang, Mianqi |
| author_facet | Karch, Andreas Sanyal, Ainesh Spieler, Ryan C. Wang, Mianqi |
| contents | We calculate the one-point functions of the marginal operator $\mathcal{L}'$ dual to the space-varying dilaton in 4D and 2D holographic Janus interfaces, extending results in arXiv:hep-th/0407073. We compare strongly-coupled supergravity and weakly-coupled CFT limits across $\mathcal{N}=0, 1, 2, 4$ holographic Janus interfaces in 4D SYM, and $\mathcal{N}=0, 4$ Janus interfaces for 2D D1-D5 CFT. Exact agreement between these regimes occurs only for the half-BPS interfaces in both 4D and 2D cases, while for other interfaces they agree to first order of the jump parameter. This result reinforces that exact weak/strong coupling matching for interface observables on supersymmetric (SUSY) conformal manifolds is exclusive to maximally SUSY interfaces. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_03185 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | One-point functions in 2D and 4D SUSY Janus Karch, Andreas Sanyal, Ainesh Spieler, Ryan C. Wang, Mianqi High Energy Physics - Theory We calculate the one-point functions of the marginal operator $\mathcal{L}'$ dual to the space-varying dilaton in 4D and 2D holographic Janus interfaces, extending results in arXiv:hep-th/0407073. We compare strongly-coupled supergravity and weakly-coupled CFT limits across $\mathcal{N}=0, 1, 2, 4$ holographic Janus interfaces in 4D SYM, and $\mathcal{N}=0, 4$ Janus interfaces for 2D D1-D5 CFT. Exact agreement between these regimes occurs only for the half-BPS interfaces in both 4D and 2D cases, while for other interfaces they agree to first order of the jump parameter. This result reinforces that exact weak/strong coupling matching for interface observables on supersymmetric (SUSY) conformal manifolds is exclusive to maximally SUSY interfaces. |
| title | One-point functions in 2D and 4D SUSY Janus |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2604.03185 |