output
19982026
most citedHorizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A

753 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2025 · gr-qcShow all

5 papers · 2 filters

gr-qc2025

Emergence of the cosmic space inspired by mass-to-horizon entropy

Ahmad Sheykhi

The conception of gravity as an emergent phenomenon, rooted in the thermodynamics of spacetime, offers a radical departure from its geometric description. This paper investigates t…

gr-qc2025★ 1 cited

Constraining Zero-Point Length from Gravitational Baryogenesis

Ava Shahbazi Sooraki, Ahmad Sheykhi

The existence of a fundamental zero-point length, , a minimal spacetime scale predicted by T-duality in string theory or quantum gravity theories, modifies the entropy associa…

gr-qc2025★ 1 cited

Observational constraints on the modified cosmology inspired by string T-duality

G. G. Luciano, A. Paliathanasis, A. Sheykhi

We explore the cosmological consequences of a modified cosmology inspired by string T-duality. We incorporate the zero-point length correction, , into the gravitational potent…

gr-qc2025

Holographic dark energy in modified Kaniadakis cosmology

A. Sheykhi, A. Asvar, E. Ebrahimi

It is well-known that any modification to the entropy expression not only change the energy density of the holographic dark energy, but also modifies the cosmological field equatio…

gr-qc2025★ 6 cited

Big-Bang nucleosynthesis constraints on (dual) Kaniadakis cosmology

Ahmad Sheykhi, Ava Shahbazi Sooraki, Leila Liravi

We investigate the concept of Kaniadakis entropy and its dual formulation, examining their implications for gravitational dynamics within the framework where gravity emerges as an…