Chern-Simons-like formulation of 3D MMG-like massive gravity models

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Main Authors: Dedeoğlu, Büşra, Ozkan, Mehmet, Sarıoğlu, Özgür
Format: Preprint
Published: 2026
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author Dedeoğlu, Büşra
Ozkan, Mehmet
Sarıoğlu, Özgür
author_facet Dedeoğlu, Büşra
Ozkan, Mehmet
Sarıoğlu, Özgür
contents We investigate the Chern-Simons-like formulation of 3D MMG-like massive gravity models that are "third-way consistent". Building on previous work on exotic massive gravities, we analyze a class of MMG-like theories characterized by a specific parity structure and an auxiliary field hierarchy. Focusing on the simplest non-trivial case, we solve the full set of field equations, determine the AdS background solutions, compute the central charges of the dual CFT, and perform a linearized analysis to obtain the mass spectrum. Along the chiral line, the linearized mass operator develops a rank-2 Jordan block, signaling logarithmic behavior of massive modes in the dual two-dimensional CFT. At a special degenerate point, this structure is enhanced to a rank-3 Jordan block, giving rise to two logarithmic partners and an ultra-logarithmic sector in the boundary theory.
format Preprint
id arxiv_https___arxiv_org_abs_2601_03936
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Chern-Simons-like formulation of 3D MMG-like massive gravity models
Dedeoğlu, Büşra
Ozkan, Mehmet
Sarıoğlu, Özgür
High Energy Physics - Theory
General Relativity and Quantum Cosmology
We investigate the Chern-Simons-like formulation of 3D MMG-like massive gravity models that are "third-way consistent". Building on previous work on exotic massive gravities, we analyze a class of MMG-like theories characterized by a specific parity structure and an auxiliary field hierarchy. Focusing on the simplest non-trivial case, we solve the full set of field equations, determine the AdS background solutions, compute the central charges of the dual CFT, and perform a linearized analysis to obtain the mass spectrum. Along the chiral line, the linearized mass operator develops a rank-2 Jordan block, signaling logarithmic behavior of massive modes in the dual two-dimensional CFT. At a special degenerate point, this structure is enhanced to a rank-3 Jordan block, giving rise to two logarithmic partners and an ultra-logarithmic sector in the boundary theory.
title Chern-Simons-like formulation of 3D MMG-like massive gravity models
topic High Energy Physics - Theory
General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2601.03936