![The theoretical framework details scattering interactions involving charged scalar particles-specifically, the [latex]\phi\phi \to \phi\phi[/latex] process-and considers contributions from a quartic scalar interaction, photon exchange, and the subtle influence of graviton exchange at the tree level.](https://arxiv.org/html/2603.05476v1/2603.05476v1/x8.png)
New calculations reveal how scattering amplitudes are modified when quantum electrodynamics is coupled to a specific higher-derivative gravity theory, offering insights into infrared and collinear behavior.
![The nonlinear generation of higher harmonics-frequencies designated [latex] \omega_i [/latex]-exhibits distinct decay properties, as demonstrated with initial data encompassing three harmonics at [latex] (\Omega_1, \Omega_2, \Omega_3) = (1, 2, 3) [/latex], revealing the complex dynamics inherent in frequency decomposition.](https://arxiv.org/html/2603.04501v1/2603.04501v1/fig_2.png)
New research demonstrates that while general relativity can often be accurately modeled with linear approximations, significant nonlinear effects – including the generation of higher harmonics – are present in strong gravitational systems.
![Evidence coverage diminishes with increased tool use across three search agents-GPT-5, MindWatcher, and MiniMax-m2.1-as indicated by a plateauing of factual coverage [latex]FCR(k)[/latex] and hit precision [latex]HitPrec(k)[/latex] after a certain number of tool calls [latex]k[/latex], with marginal gains observed only for trajectories exceeding a minimum tool-call cohort size of [latex]k_{\text{cohort}}[/latex].](https://arxiv.org/html/2603.04751v1/2603.04751v1/x2.png)
Researchers have developed a new framework to rigorously evaluate the deep-search capabilities of artificial intelligence agents in a controlled, simulated environment.
A novel optomechanical approach using dual levitated spheres within an optical cavity is pushing the boundaries of tests for fifth-force interactions predicted by symmetron dark energy models.
![A systematic imaging protocol resolves the spin-resolved occupation of all ten states of [latex] ^{87}Sr [/latex], achieved through sequential detection blocks that optically pump, image, and remove population from each spin state, revealing multi-detection events attributable to off-resonant scattering and spin depolarization within a [latex] 35 \times 35 [/latex] lattice of 253 atoms.](https://arxiv.org/html/2603.05478v1/2603.05478v1/x3.png)
Researchers have achieved full spin-resolved imaging of strontium atoms, opening a new window into the behavior of complex quantum systems.
![The convergence of the rescaled single-particle probability density function to an invariant density is demonstrated for a particle within an asymptotically flat Lennard-Jones potential, specifically showing that as time increases, the distribution approaches the scaling form [latex]\mathcal{I}(x)[/latex], which corresponds to the unnormalized Boltzmann state, thus establishing a fundamental limit to the system’s long-term behavior.](https://arxiv.org/html/2603.05390v1/2603.05390v1/infiniteden1.png)
A new theoretical framework connects the statistical behavior of rare events to the fundamental properties of systems with infinite invariant densities.
![The study demonstrates how individual, low-energy fluctuation modes contribute to the nonlocal two-point correlation function - measured in MeV and assessed at a fixed spatial point of (5.83, 0) fm with a Matsubara mode of [latex]\lambda = 0[/latex] and a chemical potential of 240 MeV - revealing patterns determined by combinations of radial and angular momentum quantum numbers.](https://arxiv.org/html/2603.04923v1/2603.04923v1/figure3.png)
New research reveals how temperature gradients fundamentally alter the behavior of the quark-gluon plasma, leading to directional patterns in its evolution.
![The magnetic moments of negative-parity strange hidden-bottom pentaquark states-characterized by spin configurations of [latex]J^{P}=1/2^{-},3/2^{-},5/2^{-}[/latex]-reveal distinct behaviors depending on whether the system adopts a molecular or compact configuration.](https://arxiv.org/html/2603.04911v1/2603.04911v1/x1.png)
New research reveals how the magnetic moments of strange hidden-bottom pentaquarks are dictated by internal spin correlations, offering insights into the structure of these unusual particles.
A new computational framework leverages ‘virtual rishons’ to tackle the complex challenge of simulating lattice gauge theories, offering a promising path for understanding strong interactions.
Researchers have experimentally demonstrated a unique form of light manipulation within a photonic network, unlocking access to previously unseen topological phases of matter.