Damghan University

Holographic Complexity as a Probe of Boundary Entropy in AdS/BCFT

We investigate how the sewing operations familiar from topological quantum field theory provide a useful organizational framework for semiclassical AdS/BCFT path integrals. Our purpose is not to identify AdS/BCFT with a topological field theory: the bulk geometry, the end-of-the-...

Thermophysical characterization, kinetic analysis, and multi-response optimization of paraffin wax/eicosane binary mixtures for lithium-ion battery thermal management system

Efficient thermal management is essential for the safety, performance, and lifetime of lithium-ion batteries, especially in high-power applications such as electric vehicles, where elevated temperatures and thermal non-uniformity accelerate degradation. Passive cooling by phase c...

Synergistic Ion-Bridging and Disjoining Pressure in Smart Brine EOR: A Hybrid Molecular Dynamics and Machine Learning Approach

Abstract The synergistic integration of nanotechnology and “smart brine” chemistry represents a complex Frontier for enhanced oil recovery (EOR), where the coupling between ion-bridging kinetics and macroscopic displacement remains a subject of rigorous investigation. This study...

Gravitational wave signatures and periodic orbits of a charged black hole in a Hernquist dark matter halo

Abstract In this work, we study the motion of massive test particles and the gravitational wave emission associated with periodic trajectories around a magnetically charged black hole immersed in a Hernquist dark matter halo. We begin by analyzing the effective potential and the...

Beyond the bounce: multiple tidal sign reversals and turning-point bifurcations in multi-horizon black holes

Abstract We investigate the radial motion and tidal forces experienced by neutral test particles in multi-horizon black hole solutions arising from Einstein gravity coupled to nonlinear electrodynamics (NED). Focusing on the three- and four-horizon configurations, we examine how...

Atomic clocks and gravitational waves as probes of non-metricity

Abstract Non-metricity provides a natural extension of Riemannian geometry, yet its experimental signatures remain largely unexplored. In this work we investigate how spacetime non-metricity can be probed through high-precision observations, focusing on atomic clocks and gravitat...

Hierarchical graphene oxide/Co-metal-organic framework/Fe₃O₄ structures for high-performance applications

Metal–organic frameworks (MOFs) and ferrites face drawbacks such as poor conductivity and self-aggregation. Optimized synthesis methods partially alleviate these issues, while a complementary strategy is to design nanocomposites that integrate both materials. We engineer three-di...

Black Hole Gravitational Phenomena in Higher-Order Curvature–Scalar Gravity

This work aims to explore the gravitational consequences of a recently proposed black hole solution previously introduced, which incorporates quantum gravitational corrections of General Relativity. We initiate our analyses by taking into account the horizon structure, focusing o...

A winding number analysis of Schwarzschild black hole stability in light of Planck-scale modified kinematics

Abstract Determining whether Planck-scale effects can stabilize black holes addresses fundamental questions about black hole evaporation and quantum gravity consistency. Here, we analyze the thermodynamic topology ofSchwarzschild black holes under Planck-scale modified kinematics...