Spontaneous emission and lasing in photonic time crystals
arXiv:2507.19916v1 Announce Type: new Abstract: We report the first direct mapping of the local density of states (LDOS) in a photonic time crystal (PTC), capturing its…
Multi-Resolution Training-Enhanced Kolmogorov-Arnold Networks for Multi-Scale PDE Problems
arXiv:2507.19888v1 Announce Type: new Abstract: Multi-scale PDE problems present significant challenges in scientific computing. While conventional MLP-based deep learning methods exhibit spectral bias in resolving multi-scale…
Fundamental limitations of thermoradiative energy conversion
arXiv:2507.19864v1 Announce Type: new Abstract: Understanding the fundamental limits of various energy conversion approaches is essential for assessing their efficiency and power output. In this work,…
Water Heterostructure Photodetector for Calculation of Semiconductor Minority Carrier Lifetime
arXiv:2507.19857v1 Announce Type: new Abstract: The minority carrier lifetime of semiconductor materials is a crucial performance parameter for optoelectronic devices. However, the existing minority carrier lifetime…
Empirical structure physicalism and realism, Hempel’s dilemma, and an optimistic meta-induction
arXiv:2507.19834v1 Announce Type: new Abstract: Motivated by a generalization of Hempel’s dilemma, I introduce a novel notion of empirical structure, as well as theory supervenience as…
Proper Orthogonal Decomposition-based Model-Order Reduction for Smoothed Particle Hydrodynamics Simulation
arXiv:2507.19825v1 Announce Type: new Abstract: In this paper, we present a projection-based model-order reduction (MOR) technique for smoothed particle hydrodynamics (SPH) simulations, which is a mesh-free…
Dielectric environment engineering via 2D material heterostructure formation on hybrid photonic crystal nanocavity
arXiv:2507.19796v1 Announce Type: new Abstract: Hybrid integration of two-dimensional (2D) materials with nanophotonic platforms has enabled compact optoelectronic devices by leveraging the unique optical and electronic…
A Micromechanical Model for Mineral Replacement Reactions and Associated Deformation: From Pore Clogging to Solid Volume Increase
A new model shows how reactions underground can clog or crack rocks, reshaping them and controlling how fluids move—key to earthquakes, CO₂ storage, and Earth’s evolution.
In Other Journals
Science, Volume 389, Issue 6758, Page 362-363, July 2025.
Running out of road
Science, Volume 389, Issue 6758, Page 430-430, July 2025.