578 papers
The subatomic world is a realm where matter behaves in ways that defy our everyday intuition, and this category explores the fundamental building blocks of our universe. From the intricate dance of quarks inside a proton to the strange properties of electrons, these studies reveal the deep rules that govern everything from the smallest particles to the largest stars.
At Gist.Science, we track every new preprint in this field as it appears on arXiv, ensuring you stay ahead of the curve. For each discovery, we provide both a clear, plain-language explanation of the core ideas and a detailed technical summary for those who want to dive deeper into the mathematics and methodology.
Below are the latest papers in Atom-Ph, offering fresh insights into the structure and behavior of the atomic scale.
This paper presents a theoretical computation of the hyperfine splitting for P-wave heavy quarkonium states with next-to-next-to-next-to-next-to-leading-order accuracy and next-to-next-to-next-to-next-to-leading-logarithmic resummation, followed by a phenomenological analysis applied to bottomonium, charmonium, the system, and various leptonic and atomic systems.
This paper demonstrates that dressing the intermediate state of a hot Rb vapor with a strong control field enables the observation of high-optical-depth, sub-Doppler-width absorption lines at telecom wavelengths, achieving a significant reduction in linewidth without the need for laser cooling.
This review comprehensively outlines recent theoretical and experimental advances in diatomic Rydberg molecules, categorizing them by their binding mechanisms (ground-Rydberg, Rydberg-Rydberg, and ion-Rydberg) and detailing their formation, potential energy curves, experimental observations, and spectroscopic properties to provide a state-of-the-art overview of the field.
This study reveals strong electron correlations in planetary atomic structures through kinematically complete investigations of nonsequential above-threshold double ionization in cold strontium atoms, demonstrating that doubly excited states mediate the emission of correlated electron pairs and fundamentally reshaping our understanding of electron dynamics in laser-driven three-body systems.
This study demonstrates that residual rubidium atoms in a high-temperature sapphire cesium vapor cell can exhibit saturated absorption and electromagnetically induced transparency (EIT) resonances, where the dense cesium buffer gas enhances the EIT signal by reducing atomic velocity and extending interaction time, thereby enabling spectroscopic analysis of trace species and collisional cross-sections.
This paper introduces simple boundary corrections to the matrix Numerov method that incorporate analytic near-origin information, thereby restoring and even enhancing its convergence order for solving the Schrödinger equation with singular potentials like the Coulomb interaction.
This paper reports on the commissioning and technical description of a newly implemented fast electron-energy scan system for the Giessen crossed-beams experiment, which utilizes a multi-electrode high-power electron gun to enable independent control of electron energy and density for precise electron-impact ionization cross-section measurements.
This paper demonstrates a quantum weak measurement scheme using Rydberg atom-based electromagnetically induced transparency that leverages probe laser polarization changes to suppress technical noise and achieve a sensitivity of 33 for low-frequency electric field sensing.
This paper provides a theoretical framework demonstrating how entanglement between optical field modes can be distilled into genuine entanglement between the physical wavefunctional degrees of freedom of photons, thereby clarifying the critical role of measurement context and subsystem definition in quantum optical systems.
This paper theoretically demonstrates that a newly proposed complex-valued parameter effectively describes the strong scattering angle dependence of Fano resonance profiles in cold atomic collisions, revealing its high sensitivity to inter-atomic interaction potentials and its utility for studying these potentials.