Damghan University PressJournal of Holography Applications in Physics2783-47786420260530More About the Spontaneous Breaking of Time Reversal in de Sitter Space115208910.22128/jhap.2026.3250.1192ENLeonard SusskindLITP and Department of Physics, Stanford University, Stanford, CA 94305-4060, USA;
Google, Mountain View, CA, USAJournal Article20260210It is widely thought that the quantum theory of de Sitter space requires the existence of a physical observer in the static patch. What exactly is meant by an observer is unclear; it could be anything from a few photons with energy just above the Gibbons-Hawking temperature to a gravitationally bound cluster of galaxies. In a recent note, I explained that one way the need for observers can arise is from the spontaneous breaking of time-reversal symmetry. This longer paper expands on the subject, filling in conceptual arguments that were implicit but not explicitly stated in the earlier paper. https://jhap.du.ac.ir/article_2089_b9e8901dad506f591a8d3500735b55bd.pdfDamghan University PressJournal of Holography Applications in Physics2783-47786420260530Correlated Time Flow over Emerging Mass Holograms in the Euclidean Space of Observation1627208710.22128/jhap.2026.3120.1154ENIgor BulyzhenkovSpace Research Institute RAS, Moscow 117997, Russia;
Peoples’ Friendship University of Russia, Moscow 117198, Russia0000-0003-3835-0973Journal Article20251103Metric-kinetic self-acceleration can quantitatively introduce a chronal (instantaneous) reason for the non-local emergence of active and passive field masses in their holistic distribution. Four Hilbert variations of Ricci\rq{s} action for a holistic hierarchy with Euclidean matter-space and dilated time invariant reveal a monistic analogue to Einstein's Equation. The Ricci scalar and holographic mass density can similarly be described by local relativistic acceleration arising from the primary cause of metric time dilation due to chronal information correlations. Shannon optimal distribution of information defines equilibrium metric stresses and the inhomogeneous chronal flow which is responsible for the local generation of mass densities in a holistic field hierarchy. Non-metric information perturbations temporarily drive the monistic universe of massive holograms "from being to becoming".https://jhap.du.ac.ir/article_2087_9613f65c4f276070b40ef2a54c00da66.pdfDamghan University PressJournal of Holography Applications in Physics2783-47786420260530Thermodynamics of Noncommutative Geometry Inspired Regular Black Holes Coupled with Nonlinear Electrodynamics2839208110.22128/jhap.2025.3151.1165ENIndra SenRamDepartment of Physics, Dyal singh College, University of Delhi, New Delhi 110003, IndiaNitin KumarDepartment of Physics, Rajdhani College, University of Delhi, New Delhi 110015, IndiaManish PandeyDepartment of Civil Engineering, Faculty of Engineering, Marwadi University, Rajkot, Gujrat 360003, IndiaJournal Article20251116In this paper, we introduce an exact solution for a Hayward black hole (BH) by incorporating anisotropic perfect fluid influenced by nonlinear electrodynamics and non commutative geometry. The solution obtained resembles de Sitter spacetime at a small value of $r$ ($r\to 0$) and at a large distance ($r\to \infty$) resembles the regular Schwarzschild geometry . In the absence of non commutative geometry the solution obtained interpolates with the Hayward BH and as non commutative geometry inspired BH in the absence of magnetic monopole charge. Non commutative geometry modifies thermodynamic properties of the BH. The calculation of Hawking temperature and its graphical analysis indicate that the temperature reaches its peak at the point of heat capacity divergence.https://jhap.du.ac.ir/article_2081_66ab62d54e607aa6aa057127c8775cb1.pdfDamghan University PressJournal of Holography Applications in Physics2783-47786420260501The Holographic Computational Universe40170208210.22128/jhap.2026.3202.1180ENOlivier DenisInformation Physics Institute, Waremme, Liège, Belgium0000-0003-0448-7154Journal Article20251225The Holographic Computational Universe (HCU) introduces a fundamental paradigm shift in physics by asserting that time, spacetime, gravity, and matter emerge from the quantized and conserved transduction of bulk entropy into boundary information through the Holographic Thermodynamic Cycle (HTC). This cyclic eight-phase renewal mechanism maintains global informational balance and drives the universe’s continual self-updating. In this framework, space is not an absolute background but a relational structure: a dynamic network of Rindler–Compton (RC) cells, each encoding one nat of information per HTC. Time is not an external parameter but a computational variable, arising from the ordered succession of Quantum Informational Ticks (QITs), the minimal holographic computations that refresh boundary surfaces. Entropy quantifies the evolving informational phase space and increases because the universe persistently computes and records its own structure. Gravity is the thermodynamic response to informational disequilibrium, manifesting as curvature generated by entropy gradients across the holographic boundary. By unifying relativity, quantum mechanics, holography, thermodynamics, and information theory into a single physical computational framework, HCU reconceives the universe as a non-formal, non-algorithmic system whose evolution is governed by irreversible informational transduction rather than symbolic computation. The HCU offers a coherent and experimentally testable paradigm that simultaneously addresses quantum gravity, grounds the Second Law of Thermodynamics, explains temporal irreversibility, and defines universe itself as an autonomous, non-algorithmic, informational, holographic computational self-learning system.https://jhap.du.ac.ir/article_2082_fb7411129cde7d80bf573ab0e1f15da5.pdfDamghan University PressJournal of Holography Applications in Physics2783-47786420260501Regular Black Holes in Einstein-Gauss-Bonnet Gravity Coupled with a Cloud of Strings171184208310.22128/jhap.2025.3150.1164ENYogesh KumarDepartment Physics, Hansraj College, University of Delhi, New Delhi, 110007 India0000-0002-9548-8322Amit KumarDepartment Physics, Goverment degree College, Unnao, Uttar Pradesh, IndiaManish PandeyDepartment of Civil Engineering, Faculty of Engineering, Marwadi University, Rajkot, Gujarat 360003, IndiaJournal Article20251116In this paper, we construct regular black holes coupled with the Cloud of String, which becomes Maxwell's theory in the weak field limit, and we can compare new attributes against the standard Letelier black hole and Schwarzschild black hole. The thermodynamic quantities associated with the black hole are modified in the presence of CoS. We also study the global properties of the solutions and derive the corrected first law of thermodynamics. In addition, we also study the local and global stability of the black hole solution. https://jhap.du.ac.ir/article_2083_a6d3717c485c92065210a00bf05cff24.pdfDamghan University PressJournal of Holography Applications in Physics2783-47786420260530Testing Logarithmic f(G) Model with Observational Data Sets185216209810.22128/jhap.2026.3248.1191ENMohit ThakreSymbiosis Institute of Technology, Nagpur Campus, Symbiosis International, Deemed University, Pune-440008, Maharashtra, IndiaPraveen KumarDhankarSymbiosis Institute of Technology, Nagpur Campus, Symbiosis International, Deemed University, Pune-440008, Maharashtra, India0000-0002-8201-6019Albert MunyeshyakaRwanda Astrophysics Space and Climate Science Research Group, University of Rwanda, College of Science and Technology, Kigali, Rwanda0000-0002-9036-7185Safiqul IslamDepartment of Mathematics and Statistics, College of Science, King Faisal University, P.O. Box 400, Al Ahsa 31982, Saudi ArabiaJournal Article20260209In this study, we have put the mechanism for a Friedmann equation of modified f(G) gravity by solving it with numerical method in the view of matter with pressure-less condition. This mechanism allows us to forecast the redshift action of expansion rate of the Hubble. Here, in this paper, we have applied a Bayesian Markov Chain Monte Carlo (MCMC) technique, which is applying late time cosmic observances to put limitation on the model parameters of the Gauss Bonnet . Our understanding results in the fact that the $f(G)$ model can restore low redshift action of the standard ($\Lambda$ CDM) model. We have used Hubble (OHD), Pantheon and RSD for MCMC analysis of the logarithmic model of $f(G)$ and to constrain parameters including \(\Omega_m\) and \(H_{0}\).https://jhap.du.ac.ir/article_2098_daf649d433dbd7d7d684cd9f26c7a253.pdfDamghan University PressJournal of Holography Applications in Physics2783-47786420260530Analytic Correspondence between Barrow Holographic Dark Energy and f(Q) Gravity217231210510.22128/jhap.2026.3208.1182ENLeila ShahkaramiSchool of Physics, Damghan University, Damghan, P.O.Box 36716-45667, Iran.Journal Article20251228We investigate Barrow holographic dark energy within the framework of symmetric teleparallel $f(Q)$ gravity at the homogeneous background level. Adopting a reconstruction viewpoint, we require the effective geometric energy density of $f(Q)$ gravity to reproduce the Barrow holographic scaling when the Hubble radius is chosen as the infrared cutoff. This condition uniquely determines a simple analytic power-law form for the nonmetricity scalar in the gravitational Lagrangian, with the Barrow deformation parameter directly fixing the exponent. The reconstructed action smoothly reduces to the symmetric teleparallel equivalent of general relativity in the limit of vanishing Barrow correction $\Delta$. We analyze the background cosmological behavior in the presence of pressureless matter and show that, for $0<\Delta<1$, the modified scaling admits an asymptotic de Sitter solution, while the standard $\Delta=0$ case does not yield self-acceleration with the Hubble cutoff. Our results establish a minimal analytic embedding of Barrow holographic dark energy into nonmetricity-based modified gravity and provide a transparent geometric interpretation of the Barrow deformation parameter.https://jhap.du.ac.ir/article_2105_f49ab5e4eca3a4f55bfccd11d283daca.pdf