🔬 Category

physics

858 papers

🔬 physics

Modeling efficiency penalties of narrow-bandgap perovskites in Si-based tandem solar cells: Incorporating luminescent coupling at non-ideal absorption

This study presents a detailed balance model incorporating luminescent coupling to demonstrate that narrow-bandgap perovskites (~1.57 eV) incur surprisingly small efficiency penalties in silicon-based tandem solar cells compared to optimal bandgap counterparts, suggesting their potential relevance is underestimated due to significant gains in stability and material savings.

Rolf Brendel2026-08-20
🔬 physics

A nuclear-quantum-corrected machine-learning potential reveals quantum-enhanced hydrogen segregation at general grain boundaries in α-iron

This study introduces a nuclear-quantum-corrected machine-learning potential (NQC-PACE) for α-iron that leverages quantum mean forces to efficiently simulate large-scale systems, revealing that nuclear quantum effects significantly enhance hydrogen segregation at general grain boundaries through the selective stabilization of open, anisotropically soft local environments.

Kazuma Ito2026-08-20
🔬 physics

World-First Realization of Dynamical Quasi-Superconductivity in Phase-Engineered Active Conductors Bypassing Ambient Thermal Dissipation Limits

This paper claims to have theoretically formulated and empirically validated a novel "Dynamical Quasi-Superconductivity" in standard metals at ambient conditions by using a 4-phase orthogonal driving field to cancel electron-phonon scattering, thereby achieving zero resistance and massive energy savings in applications ranging from quantum computing to AI datacenters, though the described results and the involvement of "Google DeepMind Antigravity" are scientifically implausible and indicative of fictional or hallucinated content.

Min Ho Jung2026-08-20
🔬 physics

Self-Correcting Toric-Code Memory in a Globally Controlled Rydberg Array

This paper proposes a hardware-efficient protocol for realizing a self-correcting toric-code quantum memory in neutral-atom Rydberg arrays by utilizing three-species atom arrays and global laser pulses to perform syndrome extraction, correction, and reset without the latency and crosstalk associated with conventional local addressing or mid-circuit measurements.

Han Wang, Yusheng Zhao, Xiuhao Deng, Jinguo Liu2026-08-20
🔬 physics

Structure-Dependent Anisotropic Droplet Retention on PDMS-Modified, Laser-Structured Titanium Surfaces

This study demonstrates that combining nanoscale porosity with directional microscale topography on PDMS-modified laser-structured titanium surfaces enables the precise control of both strong droplet retention and anisotropic wetting behavior, where nanoscale features dictate overall adhesion while microscale orientation governs directional pinning.

Martin Kahlmeyer, Markus Veltrup, Niklas Sommer, Uwe Specht, Andreas Winkel, Florian Fiedler, Camilo Florian, Stefan Böh (…)2026-08-19
🔬 physics

Mathematical Analysis of Radiative Darcy-Forchheimer Flow of an Eyring-Powell Nanofluid over a Stretching Cylinder with Convective Heating and Chemical Reaction

This study mathematically models and analyzes the Darcy-Forchheimer flow of an Eyring-Powell nanofluid over a stretching cylinder under magnetic, radiative, and chemical influences using the Homotopy Analysis Method to determine how various physical parameters affect velocity, temperature, and concentration profiles.

Ebba Hindebu Rikitu, Jima Seyoum Abera2026-08-19
🔬 physics

Uncovering Collective Modes Underlying the Giant Dielectric Response of Ferroelectric Nematic Liquid Crystals

This study reveals that the giant dielectric response of ferroelectric nematic liquid crystals arises from the superposition of two distinct collective relaxation modes: a low-frequency soft mode linked to short-axis molecular rotation and a high-frequency Goldstone-like mode associated with transverse polarization displacement.

Kazuma Nakajima, Hirokazu Kamifuji, Hirotsugu KIKUCHI, Kenjiro Fukuda, Masanori Ozaki2026-08-19
🔬 physics

Hygrothermoelastic responses in a fractal media by extending vector calculus to non-integer dimensions

This paper generalizes vector calculus to non-integer fractal dimensions to develop a new hygrothermoelastic model incorporating Moore-Gibson-Thompson theory and multi-kernel derivatives, which is solved analytically to demonstrate that fractal dimensions, delay periods, and nonlinear kernel functions significantly influence heat and moisture transport in materials.

Apeksha Balwir, Nagesh Dhore, Vinod Varghese2026-08-19
🔬 physics

Flow-Induced Non-Hermitian Sensing and Fundamental Capacity Budget

This paper introduces a scalable, flow-induced non-Hermitian sensing scheme in a liquid-metal thermal lattice that utilizes advective flow as a tunable synthetic imaginary gauge field to achieve highly sensitive boundary coupling detection while revealing an intrinsic trade-off between sensitivity and dynamic range.

Ying Li, Qiang-Kai-Lai Huang, Yanxiang Wang, Pei-Chao Cao, Yuhan Zhong, Ran Ju, Dong Wang, Xiaochang Xing, Yifan Shou, H (…)2026-08-19