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Light holographic dilatons near critical points

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arxiv 2406.04974 v2 pith:3IUDSR6O submitted 2024-06-07 hep-th hep-ph

Antón F. Faedo , Carlos Hoyos , Maurizio Piai , Ronnie Rodgers , Javier G. Subils This is my paper · ORCID
classification hep-thhep-ph
keywords criticalclassesdilatonfieldholographiclightphasepoints
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We investigate the relation between the emergence of a dilaton in gapped (confining) field theories, and the presence of either complex fixed points or instabilities in the strongly coupled dynamics in two classes of bottom-up holographic models. We demonstrate that in one of the two classes there is a critical line of first-order phase transitions (at zero temperature) that terminates at a critical point. We calculate the mass spectrum of fluctuations of the associated regular gravity backgrounds, which we interpret as bound states in the dual field theories. In proximity to the second-order phase transition, we find a parametrically light scalar state, and its composition leads us to identify it as a dilaton.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Light dilaton from top-down holographic confinement with magnetic fluxes

    hep-th 2026-02 conditional novelty 6.0 of 10

    In a two-flux family of top-down holographic confining theories, the lightest scalar is an approximate dilaton with mass about one tenth of the lightest spin-2 confinement scale, over a wide, untuned region of paramet...

  2. Dilaton Physics from Asymptotic Freedom

    hep-th 2025-01 conditional novelty 6.0 of 10

    In a large-N 3D Gross-Neveu-Yukawa theory, the endpoint of the conformal window spontaneously breaks scale symmetry, producing a massless dilaton whose decay constant and induced mass obey a universal product formula.

  3. Dilaton Effective Field Theory across the Conformal Edge

    hep-lat 2025-12 conditional novelty 5.0 of 10

    Fitting a dilaton EFT with a free exponent Δ to lattice spectra indicates SU(3) N_f=8 is confining (Δ<4) and SU(2) adjoint is infrared conformal (Δ>4).

  4. More on thermal holographic RG flows in a 3D gauged supergravity

    hep-th 2024-12 conditional novelty 5.0 of 10

    In a 3D gauged supergravity, thermal holographic RG flows come in monotonic and non-monotonic classes, with a special analytic class where the metric is exactly BTZ and the scalar is hypergeometric.

  5. On the stability of holographic confinement with magnetic fluxes

    hep-th 2024-11 conditional novelty 5.0 of 10

    A bottom-up holographic model with magnetic flux on a circle shows a confining-to-conformal phase transition that occurs before a tachyonic instability, with the lightest scalar near the transition resembling a dilaton.

  6. Dilatonic states, phase transitions, and criticality in holography

    hep-th 2026-07 accept novelty 3.0 of 10

    A review of holographic examples indicating that a light dilaton appears near critical endpoints of first-order zero-temperature phase transitions, with explicit but lower-dimensional demonstrations.

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