physics papers | Gist.Science

The Jayagnana Infinity (J∞) Framework: A Unified Matrix-Theoretic Approach to Orbital Dynamics, Stability, and Symmetry

This paper presents the Jayagnana Infinity (J∞) framework, which unifies Newtonian orbital dynamics into a single state-space matrix equation and provides a closed-form derivation of the Laplace-Runge-Lenz vector's invariance and evolution, validating the model's numerical stability and accuracy across diverse celestial systems from Earth to exoplanets and neutron stars.

N. Thirugnanamuthu2026-07-21

🔬 physics

Benchmarking Non-Markovianity Measures in Digital Quantum Simulation of Open Quantum Systems

This paper benchmarks non-Markovianity measures in digital quantum simulations of open quantum systems, revealing how encoding choices, finite-shot noise, and device correlations distort memory quantification while providing validated corrections and a resource-fair comparison of simulation methods.

S. M. Yousuf Iqbal Tomal2026-07-21

🔬 physics

Superheavy dark matter and stepped dark radiation for Hubble Tension

This paper proposes a superheavy nonthermal dark matter framework where gravity-induced collapse into quantum-gravitational bound states converts an overabundance of dark matter into dark radiation, thereby increasing $N_{\text{eff}}$ to resolve the Hubble tension while remaining consistent with cosmological observations.

Zhijie Xu2026-07-21

🔬 physics

Receptivity and Biorthogonal Decomposition in a Reacting Temporal Mixing Layer

This paper investigates receptivity and biorthogonal decomposition in a reacting temporal mixing layer, demonstrating how distributed reacting thermodynamics reorganize compressible shear-layer instability and identifying mass, mixture-fraction, and thermochemical forcing as the primary mechanisms for exciting the unstable finite-thickness Kelvin–Helmholtz branch.

Sriram P. Kalathoor, Joseph C. Oefelein2026-07-20

🔬 physics

Application of spin-dependent microwave photoconductivity for detection magnetic resonance of recombination centers on silicon surface and Si/SiO2 interface

This paper reports the successful detection of surface paramagnetic centers on silicon wafers and the Si/SiO2 interface using spin-dependent microwave photoconductivity, observing response variations not only at magnetic resonance but also at magnetic field values corresponding to the crossing and anticrossing points of magnetic sublevels.

Leonid Vlasenko2026-07-20

🔬 physics

How good are universal MLIPs for alloys? A benchmark is only as trustworthy as its controls

This paper demonstrates that current benchmarks for universal machine-learned interatomic potentials (uMLIPs) are often unreliable due to uncontrolled variables like database conventions and DFT noise, revealing that applying rigorous controls exposes benchmark artifacts and shows that no single metric can accurately rank these models for alloy stability.

Gus Hart, Jacob Pursley2026-07-20

🔬 physics

Structural, magnetic, and radiation shielding properties of Ho3+–substituted Ni–Zn–Co nanoferrite

This study demonstrates that Ho³⁺ substitution in Ni–Zn–Co nanoferrites, synthesized via citrate combustion, successfully enhances both magnetic properties for Ku-band applications and radiation shielding efficiency against ionizing radiation across a broad energy spectrum.

M. Sadeq, Fiasl Anzy, ABeer Ghamdy, MOhammed Abdo2026-07-20

🔬 physics

Study on structural, conduction mechanisms, and non-Debye behavior of YbNbO 4 ceramic: insights into charge carrier dynamics

This study characterizes the structural, microstructural, and electrical properties of YbNbO4 ceramic, revealing its non-Debye relaxation behavior, semiconducting nature governed by the correlated barrier hopping model, and potential for use in electronic and energy storage applications.

Mohamed Mounir Bouzayani, Imed Kammoun, Wael Z. El-sayad, Souad Chkoundali, Mustapha Zaghrioui, Abderrazek OUESLATI, Abd (…)2026-07-20

🔬 physics

Entanglement Before Geometry: Random Tensor Networks as the Quantum Completion of the Flux-Gauge Area Law

This paper bridges the gap between combinatorial flux-gauge models and quantum tensor networks by demonstrating that SU(N) link ensembles constitute exact tensor networks whose random intertwiner distributions and renormalization-group structure naturally reproduce the Ryu–Takayanagi area law, thereby establishing a rigorous quantum derivation of emergent spacetime geometry from gauge-theoretic microstates.

Mohammad Hannan2026-07-20

🔬 physics

Geometry-resolved avalanche criterion in disordered spin systems: transverse connectivity corrections and asymptotic recovery of the flat-front law

This study demonstrates that while the many-body localization avalanche criterion asymptotically recovers a simple area-dependent law at strong disorder, finite-width disordered spin systems exhibit systematic, geometry-dependent corrections to their stability driven by transverse connectivity and closed loops, thereby explaining the slow growth of apparent critical disorder with system width and providing a quantitative framework for interpreting MBL crossovers in higher dimensions.

Hikaru Wakaura, Taiki Tanimae2026-07-20

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