585 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 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 demonstrates that replacing rubidium with potassium in an all-dielectric vapor cell significantly enhances low-frequency field transmission, enabling a Rydberg-atom sensor to detect electromagnetic fields down to 500 Hz and extending the low-frequency cutoff by nearly four orders of magnitude compared to traditional rubidium-based sensors.
This paper presents a minimally destructive, in situ technique that utilizes ultracold Rb-87 atoms themselves as a built-in magnetometer to measure and stabilize slowly drifting magnetic fields via weak measurements and Kalman filtering, effectively eliminating long-term drift while maintaining high precision.
This paper extends previous theoretical studies on two-photon K-shell ionization by incorporating non-dipole effects, revealing that these effects drastically reduce the generalized cross-sections for the Fe16+ ion by several orders of magnitude compared to the dipole approximation.
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 derives finite-value effective operators for and QED corrections to HD rovibrational transitions beyond the Born-Oppenheimer approximation, utilizing cut-off regularization and Hylleraas basis calculations to achieve a threefold reduction in uncertainty compared to previous results.
This paper demonstrates a technique using AC Stark shifts from a microwave drive to tune Rydberg atoms into a Förster resonance, thereby enhancing interaction strength and range by shifting the scaling from to while maintaining state stability and field insensitivity.
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.