We study the vacuum decay and the bubble nucleation in the anti-de Sitter black holes. In the bubble nucleation spacetime, the interior and the exterior of the bubble wall are described by two anti-de Sitter black hole spacetimes with different cosmological constants. We calculate the Euclidean action of the bubble nucleation spacetime and give the numerical results of the tunneling rates for...
We study holographic theories featuring a non-Hermitian inhomogeneous scalar deformation. We find phases where a purely imaginary current breaks PT-symmetry spontaneously. These PT-broken phases flow in the IR towards a pseudo-Hermitian conformal fixed point realizing PT-symmetry restoration at the end of the RG flow.
We present holographic models exhibiting the coexistence state of topological semimetals, thereby providing us with a valuable tool to investigate the system's behaviour in the strongly coupled regime. A number of distinct bulk solutions, each exhibiting a different infrared (IR) behaviour, have been identified, and these correspond to different types of boundary state. These states encompass...
In this presentation, we investigate the impact of f(Q) gravity on key cosmological parameters, extending beyond the framework of General Relativity (GR) by incorporating non-metricity. We analyze the modified Friedmann equations derived from this theory to understand the evolution of the Hubble parameter, energy density, pressure, and the equation of state parameter. Our findings suggest that...
Holographic quantum error-correcting code, the quantum-information structure hypothesized for the AdS/CFT correspondence, has being attracting increasing attention in new directions interrelating the studies of quantum gravity and quantum simulation. In this work, we initiate a novel approach for building holographic code that can be generally applied in potentially broad and interdisciplinary...
To analyze the holographic multipartite entanglement structure, we study the upper bound for holographic n-partite information I_n that n-1 fixed boundary subregions A,B,... participate together with an arbitrary region E for n=3,4,5. In all cases that we study, we could find regions E that make I_n tends to the information upper bound. For n=3, we prove that the upper bound of conditional...
We present a bottom-up model for the holographic dual of 2D and 3D strongly interacting systems with a disordered chemical potential along one spatial direction. On the gravity side, we introduce disorder through a space-dependent source for a U(1) gauge field sampled from a Gaussian white noise distribution; we ensure the disorder is Harris-relevant. At high temperatures, we observe...
We study an explicit formula for the thermodynamic potential of the AdS dyonic black brane solution with an axio-dilaton hair, which was discovered in an extension of the (3+1)d Gubser-Rocha model enjoying S-duality. From the thermodynamic potential, we compute the magnetization and the magnetic susceptibilities of the dyonic solution. The result of the magnetization is negative implying that...
Thermodynamics of black holes offers a promising avenue for exploring the quantum nature of black holes and quantum gravity. In this work, we investigate the thermodynamic properties of dyonic black holes in the five-dimensional Einstein-Maxwell-Chern-Simons theory, obtained from IIB supergravity. We demonstrate that the standard form of the first law of thermodynamics is inconsistent with the...
