Work

Taming Mass Gaps with Anti–de Sitter Space

Year: 2024

Type: article

Abstract: 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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.133.081601

Authors: Christian Copetti, Lorenzo Di Pietro, Ziming Ji, Shota Komatsu

Institutions: University of Oxford, University of Trieste, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Scuola Internazionale Superiore di Studi Avanzati, European Organization for Nuclear Research

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funders: Ministero dell’Istruzione, dell’Università e della Ricerca, Science and Technology Facilities Council, Instituto Nazionale di Fisica Nucleare, H2020 European Research Council