physics papers | Gist.Science

Collective Optical Excitations and Photoexcited-Carrier Dynamics in the Na 20 @C 240 Core-Shell Nanostructure

Using adiabatic real-time time-dependent density functional theory, this study characterizes the optical response and photoexcited-carrier dynamics of the Na20@C240 core-shell nanostructure, revealing a fragmented plasmon-like resonance in the Na20 core, mixed molecular-polarization modes in the C240 shell, and complex antiphase coupling that redistributes energy toward resonant electron-hole channels with hot carriers ultimately concentrating on the fullerene cage.

Haoran Liu, Nan Gao, Yurui Fang2026-10-26

🔬 physics

Real-time measurement of dielectric properties of lunar regolith simulants

This study utilizes a dual-mode measurement technique to characterize the temperature-dependent complex permittivity of lunar regolith simulants (JSC-1A and NU-LHT-4M) up to their melting points, providing critical data to optimize microwave heating processes for future lunar construction and in-situ resource utilization.

C. O’Connell, B. Garcia-Baños, J. M. Catalá-Civera, J. D. Gutiérrez-Cano, A. Lucca Fabris, S. Lim2026-10-26

🔬 physics

Effect of Porosity Distribution and Orifice Geometry on Blast- Wave Attenuation In Porous Plate Arrays

This study combines shock-tube experiments and CFD simulations to demonstrate that optimizing internal orifice geometry, particularly using continuously diverging profiles, and strategically arranging porosity gradients significantly enhance blast-wave attenuation in rigid porous plate arrays beyond the effects of porosity alone.

Philip Keppel, Helio Matos, Arun Shukla2026-10-26

🔬 physics

Theoretical prediction of masses and decay constants of bottomonium and bottom-charm mesons with spin dependent Cornell potential

This paper employs a spin-dependent Cornell potential within first-order perturbation theory to accurately predict the mass spectra and decay properties of bottomonium and bottom-charm mesons, achieving high agreement with experimental data and demonstrating the framework's effectiveness through the inclusion of QCD running coupling effects.

E. Omugbe, E. P Inyang, E. M. Khokha2026-10-26

🔬 physics

Receiver-Limited Fisher Information for Quantum Sensors under Realistic Readout

This paper introduces a receiver-limited Fisher information framework that separates state-level sensitivity from channel and readout constraints, revealing how realistic experimental factors like measurement errors and calibration uncertainty fundamentally alter the performance and optimal operating conditions of quantum sensors.

Juan Sumaya-Martinez, Omar Olmos-Lopez, Cristian Adán Mojica Casique, Jorge Mulia Rodriguez2026-10-26

🔬 physics

Teaching quantum mechanics in secondary schools: A qubit-first learning path to Bell's inequalities

This paper presents the design, implementation, and positive evaluation of a "qubit-first" secondary school curriculum that uses light polarization and authentic Bell test experiments to effectively teach the conceptual foundations and mathematical formalism of quantum mechanics.

Alberto Carlini, Andrea Lanza, Dalida Monti, Anna Soso, Elena Losero, Maddalena Mari, Matteo Oñate Orozco, Maria Bondani2026-10-26

🔬 physics

Influence of Crystallographic and Microstructural Features on Magneto-crystalline Anisotropy and Magnetization Reversal in Al-Doped Ni Thin Films

This study demonstrates that moderate aluminum doping (5 wt.%) in Ni thin films optimizes magneto-crystalline anisotropy and magnetization reversal by balancing reduced pinning with manageable structural disorder, whereas excessive doping degrades magnetic performance through defect-dominated pinning and increased lattice strain.

Qurat Ul Ain, Ali Tahir, Anam Ayub Tahami, Arzoo Fatima2026-10-26

🔬 physics

Categorization of scientific publications using large language models as applied to atomic spectroscopy

This paper presents an automated framework using large language models to categorize atomic spectroscopy literature for NIST databases, achieving high precision in identifying elemental species while highlighting that granular subject code assignment remains the primary source of error.

Manas Pandey, Alexander Kramida, Yuri Ralchenko, Dmitry Budker2026-10-26

🔬 physics

Quantum Entanglement Optimization and Prototype Design in Positronic Simulation Frameworks

This paper presents a simulation-driven framework that identifies optimal coupling coefficients for maximizing entanglement in engineered positronic substrates and proposes a prototype architecture with adaptive feedback to maintain this state under dynamic perturbations.

Bulent OZTURK2026-10-26

🔬 physics

Finite-copy optimal cloning of mixed qudit states:\\ exact optima, a closed-form cloner, and the structure of covariant sector channels

This paper resolves the long-standing problem of finite-copy optimal cloning for mixed qudit states by formulating it as a concave program over Young-label transitions, providing exact numerical optima, demonstrating that asymptotic cloners can suffer significant fidelity losses, and introducing a closed-form "Knothe–Rosenblatt" cloner that achieves near-optimal performance without semidefinite programming.

Hikaru Wakaura2026-10-26

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