İzzet SAKALLI

Prof. Dr. İzzet SAKALLI

Physics, Eastern Mediterranean University, Famagusta, Ammóchostos, Cyprus
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Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 January 2019 in Physical Review D
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Ali ÖvgünAli Övgün
Ali Övgün
Kimet JusufiKimet Jusufi
Kimet Jusufi
İzzet SAKALLIİzzet SAKALLI
İzzet SAKALLI
In this study, we found a new traversable wormhole solution in the framework of a bumblebee gravity model. With these types of models, the Lorentz symmetry violation arises from the dynamics of a bumblebee vector field that is nonminimally coupled with gravity. To this end, we checked the wormhole’s flare-out and energy (null, weak, and strong) conditions. We then studied the deflection angle of light in the weak limit approximation using the Gibbons-Werner method. In particular, we show that the bumblebee gravity effect leads to a nontrivial global topology of the wormhole spacetime. By using the Gauss-Bonnet theorem (GBT), it is shown that the obtained non-asymptotically flat wormhole solution yields a topological term in the deflection angle of light. This term is proportional to the coupling constant, but independent from the impact factor parameter. Significantly, we showed that the bumblebee wormhole solutions, under specific conditions, support the normal matter wormhole geometries.

1 October 2018 in Journal of Cosmology and Astroparticle Physics
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Ali ÖvgünAli Övgün
Ali Övgün
İzzet SAKALLIİzzet SAKALLI
İzzet SAKALLI
JSJoel Saavedra
Joel Saavedra

1 December 2018 in Annals of Physics
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Ali ÖvgünAli Övgün
Ali Övgün
KJKimet Jusufi
Kimet Jusufi
İzzet SAKALLIİzzet SAKALLI
İzzet SAKALLI

1 September 2019 in Nuclear Physics B
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Journal Article
Open access
SKSara Kanzi
Sara Kanzi
İzzet SAKALLIİzzet SAKALLI
İzzet SAKALLI

1 June 2017 in Europhysics Letters
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İzzet SAKALLIİzzet SAKALLI
İzzet SAKALLI
Ali ÖvgünAli Övgün
Ali Övgün

13 May 2020 in Modern Physics Letters A
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Journal Article
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Ali ÖvgünAli Övgün
Ali Övgün
İzzet SAKALLIİzzet SAKALLI
İzzet SAKALLI
JSJoel Saavedra
Joel Saavedra
CLCarlos Leiva
Carlos Leiva