429 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 proposes that spinning black holes in the Milky Way can act as persistent "scalar sirens" by ejecting light scalar particles via superradiant instability, thereby generating a detectable, high-velocity scalar background that offers a novel, independent probe of isolated black hole populations and scalar field properties.
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 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 demonstrates that the energy levels of QED bound states, such as muonic hydrogen, can be calculated using matrix elements of the energy-momentum tensor trace, showing analytically and diagrammatically how this method yields results consistent with standard one-loop Lamb shift calculations despite employing different diagrammatic sets.
This paper proposes and theoretically validates a cavity-based electromagnetically induced transparency (EIT) technique for efficiently measuring the temperature and phonon occupation of trapped ions in the resolved-sideband regime, offering a simplified thermometry tool applicable to both strong and weak coupling cavity QED systems.
This paper demonstrates that while advanced quantum sensors cannot directly detect gravitational waves via internal atomic or center-of-mass coupling due to negligible signal gains, they can still enhance existing laser and atom interferometers by factors of 1.04 to 2.4 by exploiting the light-propagation coupling mechanism and addressing specific noise limitations.
This paper extends a previously developed quantum mechanical scattering theory to various atomic species, demonstrating that interactions between remaining neutral atoms and electrons in expanding ultracold plasmas induce Rydberg ionization, three-body recombination, and a "quantum pressure" that explains previously anomalous experimental observations of faster plasma expansion.
This paper presents a comprehensive revision of the rigid-wavefunction approach for calculating hydrogen photoionization in magnetized media, providing explicit expressions for transition probabilities and occupation numbers that reveal significant modifications to absorption opacities and pronounced dichroic features even at magnetic field strengths below 10 MG.
This paper presents a semiclassical molecular dynamics simulation using OpenMM to demonstrate that the quantum yield of Interatomic Coulombic Electron Capture (ICEC) in aqueous solutions containing Fe cations approaches unity at higher concentrations and electron energies, while decreasing at lower concentrations due to energy loss.