Shiraz University

output

19982026

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

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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 2024Show all

28 papers · 1 filter

astro-ph.GA2024★ 7 cited

Self-regulated growth of galaxy sizes along the star-forming main sequence

Shweta Jain, Sandro Tacchella, Moein Mosleh

We present a systematic analysis of the spatially resolved star formation histories (SFHs) using Hubble Space Telescope imaging data of $\sim 997$ , intermediate redshifts $0.5 \leq…

astro-ph.HE2024★ 5 cited

Constraint on the equation of state of strange quark star: Perturbative QCD along with a density-dependent bag constant

J. Sedaghat, G. H. Bordbar, S. M. Zebarjad

This study investigates the structural properties of strange quark stars (SQS) using a Quantum Chromodynamics (QCD) perturbative model combined with the latest Particle Data Group…

hep-th2024

Replica wormhole and AMPS firewall

Amir A. Khodahami, Azizollah Azizi

We investigate the potential for generating an AMPS firewall from the replica wormhole topology, which describes the post-Page time spacetime in the evaporation process of a black…

gr-qc2024★ 4 cited

Dark Universe inspired by the Kaluza-Klein gravity and impact on Primordial Gravitational Waves

Kimet Jusufi, Giuseppe Gaetano Luciano, Ahmad Sheykhi +1

We explore the potential implications of Kaluza-Klein (KK) gravity in unifying the dark sector of the Universe. Through dimensional reduction in KK gravity, the 5D spacetime framew…

gr-qc2024★ 6 cited

Barrow Cosmology and Big-Bang Nucleosynthesis

Ahmad Sheykhi, Ava Shahbazi Sooraki

Using thermodynamics-gravity conjecture, we present the formal derivation of the modified Friedmann equations inspired by the Barrow entropy, $S \sim A^{1 + δ /2}$ , where $0\leqδ\leq…

gr-qc2024★ 4 cited

Modified $f (R, T)$ theory in light of gravitational wave standard sirens

Mahnaz Asghari, Ahmad Sheykhi

In this paper, we ponder observational constraints on the modified $f (R, T)$ gravity, where the gravitational action is a function of Ricci scalar $R$ plus the trace of the energy-m…

hep-ph2024★ 1 cited

Observability of 2HDM charged Higgs boson in a misaligned scenario

Majid Hashemi, Omid Seify

The large hadron collider precision measurement of $h_{125}$ properties suggests that a misaligned two Higgs doublet model type 1 is preferred among other types of the model. In th…

eess.IV2024

Decision Support System to triage of liver trauma

Ali Jamali, Azadeh Nazemi, Ashkan Sami +3

Trauma significantly impacts global health, accounting for over 5 million deaths annually, which is comparable to mortality rates from diseases such as tuberculosis, AIDS, and mala…

astro-ph.HE2024★ 3 cited

Effects of Dark Matter on the Spontaneous Scalarization in Neutron Stars

Fahimeh Rahimi, Zeinab Rezaei

Dark matter, an important portion of compact objects, can influence different phenomena in neutron stars. The spontaneous scalarization in the scalar-tensor gravity has been propos…

hep-ph2024★ 2 cited

Impact of new particles on the ratio of Electromagnetic form factors

A. Rafiei, M. Haghighat

We consider the electromagnetic form factors ratio in the Rosenbluth and polarization methods. We explore the impact of adding new particles as the mediators in the electron-proton…

gr-qc2024★ 12 cited

Holographic dark energy in Barrow cosmology with Granda-Oliveros IR cutoff

M. Motaghi, A. Sheykhi, E. Ebrahimi

Applying the modified Barrow entropy, inspired by the quantum fluctuation effects, to the cosmological background, and using thermodynamics-gravity conjuncture, the Friedmann equat…

hep-th2024

Coupled Sine-Gordon and $ϕ^{4}$ System

Azizollah Azizi, Shaghayegh Parkami

Coupling the fields may lead to the emergence of new phenomena. In the realm of classical fields and nonlinear systems, extensive research has been conducted on their solitary and…

nucl-th2024★ 4 cited

Neutron star calculations with the phenomenological three-nucleon force

H. Moeini, G. H. Bordbar

In this work, we have studied the effect of three-nucleon interaction on the neutron stars structure. In our calculations, we have considered the neutron star matter as a beta-stab…

cs.CV2024★ 12 cited

Quantizing YOLOv7: A Comprehensive Study

Mohammadamin Baghbanbashi, Mohsen Raji, Behnam Ghavami

YOLO is a deep neural network (DNN) model presented for robust real-time object detection following the one-stage inference approach. It outperforms other real-time object detector…

gr-qc2024★ 2 cited

Thermodynamical properties of nonsingular universe

Ahmad Sheykhi, Leila Liravi, Kimet Jusufi

We disclose the thermodynamical properties of the apparent horizon in a nonsingular universe. We take into account the zero-point length correction to the gravitational potential a…

astro-ph.CO2024★ 3 cited

Two-Field Quintessential Higgs model and the Swampland

Mehdi Es-haghi, Moslem Zarei, Ahmad Sheykhi

We study a two-field model where a quintessence field with an exponential potential $e^{- β ϕ / M_{P}}$ is coupled to the Higgs field. It is claimed that this model is consistent with th…

cond-mat.stat-mech2024

Statistical physics of principal minors: Cavity approach

A. Ramezanpour, M. A. Rajabpour

Determinants are useful to represent the state of an interacting system of (effectively) repulsive and independent elements, like fermions in a quantum system and training samples…

cs.SI2024★ 4 cited

Mining Influential Spreaders in Complex Networks by an Effective Combination of the Degree and K-Shell

Shima Esfandiari, Seyed Mostafa Fakhrahmad

Graph mining is an important technique that used in many applications such as predicting and understanding behaviors and information dissemination within networks. One crucial aspe…

gr-qc2024★ 5 cited

Growth of cosmic perturbations in the modified $f (R, T)$ gravity

Mahnaz Asghari, Ahmad Sheykhi

We explore the generalized $f (R, T)$ modified theory of gravity, where the gravitational Lagrangian is a function of Ricci scalar $R$ and the trace of the energy-momentum tensor $T$ …

cs.CL2024★ 1 cited

Towards Efficient Patient Recruitment for Clinical Trials: Application of a Prompt-Based Learning Model

Mojdeh Rahmanian, Seyed Mostafa Fakhrahmad, Seyedeh Zahra Mousavi

Objective: Clinical trials are essential for advancing pharmaceutical interventions, but they face a bottleneck in selecting eligible participants. Although leveraging electronic h…

gr-qc2024★ 9 cited

Cosmology from String T-duality and zero-point length

Giuseppe Gaetano Luciano, Ahmad Sheykhi

Inspired by String T-duality and taking into account the zero-point length correction, $l_{0}$ , to the gravitational potential, we construct modified Friedmann equations by applying…

gr-qc2024★ 17 cited

Quark stars in massive gravity might be candidates for the mass gap objects

J. Sedaghat, B. Eslam Panah, R. Moradi +2

We have investigated the structural properties of strange quark stars (SQSs) in a modified theory of gravity known as massive gravity. In order to obtain the equation of state (EOS…