Article Per Year (5 Year)
p-Index From 2021 - 2026
3.049
P-Index
This Author published in this journals
All Journal POSITRON Tadris: Jurnal keguruan dan Ilmu Tarbiyah Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Jurnal Filsafat Spektra: Jurnal Fisika dan Aplikasinya Jurnal Kajian Peradaban Islam Kappa Journal Indonesian Review of Physics (IRiP) Jurnal Simki Pedagogia Jurnal Kajian Peradaban Islam Bincang Sains dan Teknologi Research in Physics Education Time in Physics: Journal for Theoretical, Instrumentation, Material-Molecular, and Education Physics TarbiyahMU
Nurahman, Arip
Unknown Affiliation
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Transportation Other

Published : 22 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 22 Documents
Search

 1   2   3 
BLACK HOLE EVAPORATION AND THE RECONSTRUCTION OF THE ONTOLOGY OF PHYSICAL REALITY FROM A RELATIONAL AND COSMOLOGICAL EMERGENCE PERSPECTIVE Ariefka, Reza; Sahroni, Taufik Roni; Siagian, Ruben Cornelius; Nurahman, Arip; Raisal, Abu Yazid
Jurnal Filsafat "WISDOM" Vol 36, No 1 (2026): (Article in Press)
Publisher : Fakultas Filsafat, Universitas Gadjah Mada Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jf.108753

Abstract

This research is motivated by developments in modern physics which show that black holes, which in classical general relativity are considered the most stable and permanent entities in the universe, actually undergo evaporation through Hawking radiation. This phenomenon has profound philosophical implications regarding the nature of physical existence, the status of information, the structure of space-time, and the direction of cosmological time. This study aims to analyze the ontological and epistemological implications of black hole evaporation in the context of micro-macro relationships, relational ontology, and the concept of time as an emergent phenomenon. This study uses a qualitative method based on literature review and conceptual analysis by integrating the perspectives of theoretical physics, philosophy of science, and modern cosmology. The results of this study show that black hole evaporation confirms that there are no physical entities that are absolute and permanent. Physical existence is more accurately understood as a relational phenomenon that depends on the interaction between space-time geometry, quantum fluctuations, and cosmic thermodynamic processes. Furthermore, the black hole information paradox can be understood as a limitation of human epistemological description, rather than an ontological loss of physical reality. This research also confirms that the direction of time is a consequence of the emergence of increased entropy in the universe. The novelty of this research lies in the integration of the phenomenon of black hole evaporation with a structural-relational ontological approach to explain physical reality as a dynamic and emergent process.
Numerical Analysis of Metric Perturbations, Spacetime Curvature, and Gravitational Wave Polarizations in Linearized General Relativity Using the Finite Difference Method Ariefka, Reza; Siagian, Ruben Cornelius; Sahroni, Taufik Roni; Nurahman, Arip
POSITRON Vol 16, No 1 (2026): Vol. 16 No. 1 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v16i1.92372

Abstract

The general theory of relativity states that small perturbations in the spacetime metric in a weak gravitational field can be treated as perturbations propagating on the Minkowski background. Although the analytical formulation of Einstein's linear equations has been well developed, numerical studies that integrate local metric perturbations, the curvature structure of space-time through the Ricci tensor, the dynamics of gravitational wave polarization, and reduction to Newton's law of gravity in a two-dimensional domain are still limited. This research aims to numerically analyze the behavior of metric perturbations and space-time curvature in the framework of linear general relativity and verify its consistency with gravitational wave theory and Newtonian gravity at weak field and low velocity limits. The study is limited to a linearized approach, two-dimensional flat spacetime, harmonic and transverse–traceless gauge conditions, and ideal sources in the form of Gaussian perturbations and source-free waves. The methods used include the theoretical formulation of linearized general relativity and the Finite Difference Method (FDM) numerical approach to discretize the Laplace operator and wave equation with the FTCS scheme. The results show that Gaussian perturbations produce highly localized curvature with a global Ricci tensor contribution approaching zero. Gravitational wave simulations show the dominance of energy in polarization (h_+)\ over (h_\times), as well as numerical verification of the relationship (h_{00}=-2\phi), which confirms the reduction of general relativity to Newton's laws. This research fills a research gap by integrating metric analysis, curvature, and gravitational waves into a single consistent numerical framework. The novelty of this research lies in Gaussian modeling and integrated FDM-based numerical analysis as a conceptual bridge between general relativity and classical mechanics.
Co-Authors Abu Yazid Raisal Adi Jufriansah Adimayuda, Rizal Aldi Cahya Muhammad Ariefka, Reza Arif Jamali Arifah, Fina Nurul Ashel, Hazrati Bambang Supriyanto Budiana, Dodi Budiatin, Aniek Setiya Budiman Nasution Butch O. Saulon Cahya Prima, Eka E. Suhendi Eka Cahya Prima Fiqry, Rizalul Fitria Amalia, Irma Goldbert Harmuda Duva Sinaga Hadi Pranoto Herdianto, Nendar Ida Kaniawati Iman Nurzaman, Iman Ishafit Ishafit Ishafit Ishafit Kartika , Ika Khairil Anwar Lulut Alfaris Melati, Putri Sekar Nur Fadhilah, Dila Nyuswantoro, Ukta Indra Pribadi, Pandu Rahmawati, Mira Ramayana, Abdul Syamad Ramdani, Rida Sahroni, Taufik Roni sari, Lasmita Saulon, Butch O. Septiyanto, Arifin Siagian , Ruben Cornelius Siagian, Ruben Cornelius Surya Gumilar, Surya Susylowati, Susylowati Walimudin, Ihsan Widodo Widodo Widodo Widodo winsyahputra Ritonga Yani, Sindi