728 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 differential magnetic sensing technique using a cold-atom cloud in a magnetic quadrupole trap, which achieves milli-Gauss resolution by measuring the displacement of the trap center under field reversal to cancel common-mode noise without requiring spectroscopic interrogation.
This paper presents the calibration and characterization of Rydberg atom-based electric field sensors operating in the 1 kHz to 300 MHz range, achieving a noise-equivalent field of 106(4) at 300 MHz while validating a phenomenological model for low-frequency screening in quartz and sapphire vapor cells.
This paper re-examines the uncertainty of the theoretical prediction for the ground-state hyperfine splitting in muonium and compares it with the assessments found in the two most recent CODATA adjustments of fundamental physical constants.
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.