2 papers
gr-qc2023
On the quasinormal modes in generalized Nariai spacetimes
Joás Venâncio
Quasinormal modes are eigenmodes of dissipative systems. For instance, if a spacetime with an event or cosmological horizon is perturbed from its equilibrium state, quasinormal mod…
hep-th2023
Integrability of the Dirac Equation in the Presence of Fluxes on Product Manifolds
Joás Venâncio, Azadeh Mohammadi
This paper aims to show that the Dirac equation coupled to an arbitrary inhomogeneous flux field admits separation in manifolds formed from the direct product of bidimensional spac…