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arXiv · 2611.09249

Optical Geometry of a Lorentz-Violating BTZ-Like Black Hole: Reflection Double and Dirac Scattering

Abdullah Guvendi·Omar Mustafa
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Abstract

We analyze the optical geometry of a static BTZ-like black-hole metric with a Lorentz-violating radial factor, distinguishing the one-sided black-hole exterior from the reflection double constructed from its optical spatial section. The optical metric is ultrastatic and has constant negative Gaussian curvature. The reflection double is smooth and complete, with a minimal circle; it is a geometric completion, not a demonstrated solution of the Einstein--bumblebee equations. We derive exact criteria for null-geodesic crossing and return, evaluate the corresponding angular sweeps, and determine the finite domain of a Euclidean surface-of-revolution embedding. Two inequivalent magnetic configurations are specified as external test fields on the embeddable patch. For a continuum graphene analogue on the doubled geometry, we derive the covariant massless Dirac operator and reduce its radial equation to Scarf-II partner equations. The full-line connection problem yields flux-normalized complex scattering amplitudes and probabilities, the resonance-pole lattice and its gamma-function residues, spectral widths and quality factors, the digamma Wigner delay, and conditional pole contributions to packet dynamics. We compare the analytic amplitudes with direct numerical integration of the radial partner equation, including their complex phases. We further separate fixed-$\ell$ from fixed-$Λ_e$ parameter protocols and audit the optical effective-mass degeneracy using Lorentzian curvature invariants, timelike geodesics, and a massive Klein--Gordon probe. Throughout, the gravitational completion, prescribed fields, and continuum scattering results are interpreted only within the scope of their respective constructions. Device-level graphene transport and a self-consistent gravitational wormhole require additional physical input.

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Abdullah Guvendi, Omar Mustafa. 2026-11-06. Optical Geometry of a Lorentz-Violating BTZ-Like Black Hole: Reflection Double and Dirac Scattering. https://arxiv.org/abs/2611.09249

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