🔬 Category

physics

1319 papers

🔬 physics

Liouvillian versus Hamiltonian Exceptional Points as Stationary Sensing Resources: a Two-Level Dissipative Case Study

This study demonstrates that in a dissipative two-level sensor, Hamiltonian and Liouvillian exceptional points occur at distinct parameter values and do not inherently enhance stationary quantum Fisher information, revealing that the divergent sensing response associated with exceptional points is confined to the post-selected no-jump sector rather than the stationary state.

H.-Y. Liu2026-10-28
🔬 physics

X-ray investigations of stainless steel 316L produced via directed energy deposition

This study combines laboratory X-ray computed tomography and X-ray diffraction to quantitatively characterize how directed energy deposition processing parameters influence porosity, crystallographic texture, and residual stress in stainless steel 316L, demonstrating that a machine-learning-enhanced sparse-view workflow can significantly reduce scan time while maintaining high defect detection accuracy.

William Chuirazzi, Brian Newell, Mike McMurtrey, Asa Monson, Amir Ziabari, Obaidullah Rahman, Damian Lovato-Admire, Chut (…)2026-10-27
🔬 physics

Effect of irradiation geometry and pulse duration on laser damage thresholds of films on transparent substrates

This study demonstrates that the laser-induced damage threshold of paints on transparent substrates is strongly influenced by irradiation geometry and pulse duration, revealing that back-side irradiation with femtosecond pulses offers a lower-fluence mechanism for coating removal via photomechanical spallation compared to front-side thermal ablation.

J Camilo Diaz B, Gabriel Bilmes2026-10-27
🔬 physics

Flux Cycling and Voltage Pulse Generation in Nanostructured Gapless Superconductors: A Time-Dependent Ginzburg-Landau Study

Using the time-dependent Ginzburg-Landau formalism, this study analyzes vortex trajectories and voltage responses in cylindrical nanostructured gapless superconductors under dynamic magnetic fields, revealing a characteristic voltage signature pattern that persists regardless of the number of penetrating vortices and remains robust against various impurity types.

R. R. Kozii, R. Zadorosny, E. Sardella, T. T. Saraiva2026-10-27
🔬 physics

Closed-Form Residence-Time Modelling of Swirling Waste-Gas Injection Using the Lambert-W Function: Benchmarking Against Published CFD Data

This paper develops a closed-form axial residence-time model using the Lambert-W function to benchmark against CFD data from a swirl-assisted incinerator, revealing that while the analytical solution effectively isolates momentum relaxation effects, it cannot fully capture the complex, geometry-dependent transport phenomena driven by swirl and recirculation.

MohammadReza Modarres2026-10-27
🔬 physics

Ignition and Reactive-Structure Transition of Ammonia/Hydrogen Blends under MILD Combustion Conditions

This study employs numerical simulations of counterflow flamelets to investigate the ignition dynamics and reactive-structure transitions of ammonia/hydrogen blends under MILD combustion conditions, revealing how fuel dilution and hydrogen enrichment govern the evolution from localized ignition to distributed reaction zones while elucidating the resulting impacts on temperature profiles and NO formation pathways.

Biagio Cassese, Giancarlo Sorrentino, Pino Sabia, Raffaele Ragucci, Mara de Joannon2026-10-27
🔬 physics

Valley-Dependent Photogating-Controlled Quantum Transport in Monolayer Transition Metal Dichalcogenides

This paper presents a theoretical framework demonstrating that trap-charge-induced photogating can serve as a sole electrostatic control mechanism to drive valley-dependent quantum transport and induce negative differential resistance in monolayer WSe₂ and MoS₂, offering a foundation for light-controlled low-power electronic and neuromorphic applications.

Rasoul. Hashemi, Saeid Shojaei2026-10-27
🔬 physics

Performance Characterization of a Thin-Walled Well Ionization Chamber for Yttrium-90 Resin Microspheres

This study characterizes an in-house thin-walled well ionization chamber for Yttrium-90 resin microspheres, demonstrating through Monte Carlo simulation and experimentation that its signal is dominated by beta transport, exhibits excellent short-term stability, and shows a thickness-dependent response suitable for future correction and calibration development.

Lixia Tian, Zhongbin Hang, Hongpeng Dong, Yan Zhang, Hai Hu2026-10-27