105 citations
- Eastern Mediterranean UniversityCY18 papers
- Hakkari UniversityTR8 papers
- Khazar UniversityAZ7 papers
- University of Hradec KrálovéCZ4 papers
- Atatürk UniversityTR3 papers
- Al-Farabi Kazakh National UniversityKZ2 papers
- Fesenkov Astrophysical InstituteKZ2 papers
- University of TabrizIR2 papers
- Akdeniz UniversityTR1 paper
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14 papers · 1 filter
Optical and Thermodynamic Signatures of Lorentz Symmetry Breaking in Bumblebee AdS Black Holes
Behzad Eslam Panah, Abdullah Guvendi, Semra Gurtas Dogan +1
We investigate the impact of spontaneous Lorentz symmetry breaking on scalar wave propagation, null geodesics, and thermodynamic behavior of four-dimensional asymptotically AdS bla…
Electromagnetic wave propagation in static black hole spacetimes: an effective refractive index description in Schwarzschild geometry
Abdullah Guvendi, Omar Mustafa Semra Gurtas Dogan, Hassan Hassanabadi
We investigate electromagnetic wave propagation in static, spherically symmetric black hole spacetimes using a covariant and gauge-invariant framework based on the established Maxw…
Two-body Dirac equation in DSR: results for fermion-antifermion pairs
Nosratollah Jafari, Abdullah Guvendi
This study investigates a modified two-body Dirac equation in (2+1)-dimensional spacetime, inspired by Amelino-Camelia's doubly special relativity (DSR). We begin by deriving a cov…
Scalar-Wave Signatures of Wormholes in Dark Matter Halos
Abdullah Guvendi, Omar Mustafa, Semra Gurtas Dogan +2
We identify scalar-wave signatures of massless fields propagating in static, spherically symmetric wormholes embedded within realistic dark matter halos. Starting from a general li…
Charged particle dynamics in singular spacetimes: hydrogenic mapping and curvature-corrected thermodynamics
Abdullah Guvendi, Semra Gurtas Dogan, Omar Mustafa +1
We analyze the dynamics of charged test particles in a singular, horizonless spacetime arising as the massless limit of a charged wormhole in the Einstein--Maxwell--Scalar (EMS) fr…
Optics in spiral dislocation spacetime: Torsion as a geometric waveguide and frequency-filtering mechanism
Semra Gurtas Dogan, Omar Mustafa, Abdullah Guvendi +1
We present an exact analytical investigation of null trajectories and scalar wave propagation in a -dimensional spacetime containing a spiral dislocation-a topological defec…