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Topological charges and confined-deconfined phase transition in holography

Nelson R. F. Braga* and William S. Cunha†

  • *Contact author: braga@if.ufrj.br
  • †Contact author: wscunha@pos.if.ufrj.br

Phys. Rev. D 114, 046007 – Published 5 August, 2026

DOI: https://doi.org/10.1103/n5bn-2ph2

Abstract

In recent years, many interesting works providing a topological description for black hole (BH) properties have appeared in the literature. In particular, in this framework BHs correspond to topological defects in an enlarged (off shell) parameter space, with an associated total topological charge. In gauge/gravity duality the transition from the confined to the deconfined phase is mapped into the dominance of a BH phase on the gravity side. Here we show, using a holographic anti–de Sitter (AdS)/QCD model, that the introduction of an energy scale in AdS space results in a change in the topological class. Such a modification corresponds to the existence of confined and deconfined phases, separated by a Hawking-Page transition at a finite critical temperature.

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