Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.02871 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910055648985088 |
|---|---|
| author | Bartlett-Tisdall, Samuel Ge, Dongsheng Herzog, Christopher P. |
| author_facet | Bartlett-Tisdall, Samuel Ge, Dongsheng Herzog, Christopher P. |
| contents | We argue that interacting conformal line defects in free quantum field theories can exist, provided that inversion symmetry is broken. Important for our demonstration is the existence of a special cross ratio for bulk-defect-defect three point functions that is invariant under the conformal group but picks up a sign under inversion. We examine the particular case of a free scalar field in detail, and provide a toy model example where this bulk field interacts via a Yukawa term with fermions on the line. We expect nontrivial line defects may also exist for free Maxwell theory in four dimensions and free bulk fermions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_02871 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | How to get an interacting conformal line defect for free theories Bartlett-Tisdall, Samuel Ge, Dongsheng Herzog, Christopher P. High Energy Physics - Theory We argue that interacting conformal line defects in free quantum field theories can exist, provided that inversion symmetry is broken. Important for our demonstration is the existence of a special cross ratio for bulk-defect-defect three point functions that is invariant under the conformal group but picks up a sign under inversion. We examine the particular case of a free scalar field in detail, and provide a toy model example where this bulk field interacts via a Yukawa term with fermions on the line. We expect nontrivial line defects may also exist for free Maxwell theory in four dimensions and free bulk fermions. |
| title | How to get an interacting conformal line defect for free theories |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2510.02871 |