Work

Dynamical Stability and Critical Exponents of the Neutral (S-Type) Gubser–Rocha Model with Momentum Dissipation

Year: 2025

Type: article

Abstract: The Gubser–Rocha model is a holographic model that shows the linear dependence of the entropy density on the temperature. The model can be extended to possess S-duality by introducing an axio-dilaton field. With an appropriate choice of the boundary action, both models exhibit a continuous phase transition in the neutral limit. In this paper, we investigate several aspects of this phase transition. First, we show that the critical exponents of the phase transition match those of the mean-field percolation theory. Next, we analyze the dynamical stability, and the emergence of the Nambu–Goldstone modes by analyzing the quasinormal modes of the perturbation fields. The dynamical stability is consistent with the thermodynamic stability. In addition, we find that there is an emergent Nambu–Goldstone mode in the broken phase of the S-type model.

Source: Progress of Theoretical and Experimental Physics

DOI: 10.1093/ptep/ptaf141

Author: Shuta Ishigaki

Institution: Shanghai University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $979

Funders: Trường Đại học Duy Tân, National Natural Science Foundation of China