Taming Mass Gaps with Anti–de Sitter Space
Anti-de Sitter space acts as an infrared cutoff for asymptotically free theories, allowing interpolation between a weakly coupled small-sized regime and a strongly coupled flat-space regime. We scrutinize the interpolation for theories in two dimensions from the perspective of boundary conformal theories. We show that the appearance of a singlet marginal operator destabilizes a gapless phase existing at a small size, triggering a boundary renormalization group flow to a gapped phase that smoothly connects to flat space. We conjecture a similar mechanism for confinement in gauge theories.
Authors
- Christian Copetti (ORCID: https://orcid.org/0000-0001-7295-0660)
- Ziming Ji (ORCID: https://orcid.org/0000-0002-9065-8521)
- Lorenzo Di Pietro (ORCID: https://orcid.org/0000-0001-7496-5276)
- Shota Komatsu (ORCID: https://orcid.org/0000-0001-5251-8440)
Institutions
- Scuola Internazionale Superiore di Studi Avanzati (IT)
- University of Trieste (IT)
- University of Oxford (GB)
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (IT)
- European Organization for Nuclear Research (CH)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-08-19
- DOI
- https://doi.org/10.1103/physrevlett.133.081601
- Citations
- 9
- Primary Topic
- Black Holes and Theoretical Physics
- Type
- article
- Field-Weighted Citation Impact
- 5.94
Funders
- Ministero dell’Istruzione, dell’Università e della Ricerca
- Science and Technology Facilities Council
- Instituto Nazionale di Fisica Nucleare