1337 papers
This study reveals an anomalous reversal of thermal conductivity in the layered metal 2H-TaSe₂, where heat transport increases with temperature due to phonon scattering off persistent, fluctuating charge density waves that survive well above the long-range ordering transition.
By applying order-of-magnitude physics to the premise that flare-accelerated electrons constitute only a few percent of the total population, this study derives four self-consistent results regarding energy scaling, budget constraints, and particle acceleration mechanisms in solar flares, ultimately proposing a "partial-accelerator" picture where reconnection efficiency is supply-limited and plasma beta acts as a self-regulating output.
This paper presents a generalized Spalart-Allmaras turbulence model that employs a shielding function to blend near-wall and free-shear coefficients, achieving improved accuracy in separated and free-shear flows while maintaining robustness in attached flows through multi-objective calibration within an open-source framework.
This paper analyzes monotone traveling-wave profiles in a nonisothermal rational extended thermodynamics model for non-Newtonian fluids by generalizing the relaxation source to a regularly varying law, thereby deriving exact criteria for finite spatial reach and shock thickness scaling while revealing how specific threshold values of the variation index dictate distinct behaviors such as broadening, plateau formation, or collapse.
This paper demonstrates a post-fabrication reconfiguration method for Kerr optical parametric oscillators using mode-selective sideband self-injection locking to achieve tunable, high-power output with sub-hertz linewidths, overcoming traditional limitations of fixed dispersion and pump-noise transfer in integrated photonics.
This study reveals that nonharmonic damping of phonon modes and spatial correlations of atomic movements are the key factors governing the amplitude and attenuation frequency of electro-optic coefficients in ferroelectric materials like barium titanate, a finding validated by machine-learned molecular dynamics simulations that closely match experimental data.
This study investigates how Connes apodization tailors the point spread function of optical systems under defocus and spherical aberrations, demonstrating that while increasing aberrations degrade performance, apodization effectively suppresses sidelobes and maintains acceptable imaging quality, with primary spherical aberration causing more rapid degradation than secondary spherical aberration.
This paper presents an optimized silica-air dual-core photonic crystal fiber design that achieves a balance of high nonlinearity and low confinement loss at the 1.55 µm wavelength, as validated by Finite Element Method simulations.
This paper presents a physics-guided inverse design framework for aperiodic CNT-PDMS nanocomposite metamaterials that overcomes conventional trade-offs between sensitivity, linearity, and strain range in large-strain sensors by leveraging hierarchical architectural organization to achieve tailored electromechanical responses for applications like soft robotics and respiratory monitoring.
By decorating graphene with nanoscale metals to screen long-range Coulomb interactions and suppress velocity renormalization, researchers observed a hard spectral gap at the Dirac point with signatures of a Berezinskii--Kosterlitz--Thouless transition, providing the first experimental evidence for spontaneous excitonic mass generation in graphene.