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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.00356 |
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| _version_ | 1866917053724622848 |
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| author | Furuta, Yuma Kusuki, Yuya Onagi, Toshiki |
| author_facet | Furuta, Yuma Kusuki, Yuya Onagi, Toshiki |
| contents | A representative quantity that characterizes the dynamics of conformal interfaces is the transmission coefficient, which is defined through correlation functions of the stress tensor. Typically, this coefficient is complicated and highly dependent on its details. In this work, we introduce a new perspective based on the notion of a ``phantom current''. We have shown that a spin-2 phantom current arising from the folding trick completely determines the transmission coefficient. In particular, when there is a single phantom current, the transmission coefficient is uniquely fixed by its conformal dimension. As a result, our framework provides a unified explanation of known results in minimal models and the free boson, while also yielding concrete predictions for previously unexplored interfaces. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_00356 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Transmission Coefficients from Phantom Currents Furuta, Yuma Kusuki, Yuya Onagi, Toshiki High Energy Physics - Theory Statistical Mechanics Strongly Correlated Electrons A representative quantity that characterizes the dynamics of conformal interfaces is the transmission coefficient, which is defined through correlation functions of the stress tensor. Typically, this coefficient is complicated and highly dependent on its details. In this work, we introduce a new perspective based on the notion of a ``phantom current''. We have shown that a spin-2 phantom current arising from the folding trick completely determines the transmission coefficient. In particular, when there is a single phantom current, the transmission coefficient is uniquely fixed by its conformal dimension. As a result, our framework provides a unified explanation of known results in minimal models and the free boson, while also yielding concrete predictions for previously unexplored interfaces. |
| title | Transmission Coefficients from Phantom Currents |
| topic | High Energy Physics - Theory Statistical Mechanics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2511.00356 |