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Dirac oscillator in a self-gravitating cosmic string: confinement spectra beyond the conical approximation
Edilberto O. Silva
The gravitational field of a physical cosmic string is regular on the axis, curved across a finite vortex core, and only asymptotically conical. We test whether the bound-state spe…
Geometry-induced Casimir response in a helicoidal spacetime
Edilberto O. Silva
We investigate the Casimir response of a massive scalar field in a torsionless helicoidal spacetime with Levi-Civita connection. The background is ultrastatic and curved, with scal…
Dirac oscillator in a helically twisted spacetime with axial torsion
Matheus D. Moro, Fabiano M. Andrade, Faizuddin Ahmed +1
We investigate the Dirac oscillator in a helically twisted spacetime endowed with a uniform axial torsion. Starting from an orthonormal coframe, we compute the Levi--Civita spin co…
Thermodynamic geometry of charged AdS black holes with a string cloud in Lorentz-violating Einstein-Kalb-Ramond gravity
Faizuddin Ahmed, Edilberto O. Silva
We investigate the thermodynamic microstructure of electrically charged AdS black holes in Einstein-Kalb-Ramond bumblebee gravity in the presence of a spherically symmetric cloud o…
Thermodynamics and - Criticality of Charged AdS Black Holes with a Cloud of Strings in Kalb-Ramond Gravity
Faizuddin Ahmed, Edilberto O. Silva
We investigate the extended phase-space thermodynamics and -- criticality of electrically charged anti-de Sitter (AdS) black holes in Kalb--Ramond bumblebee gravity in the pr…