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 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.
This paper presents a high-precision theoretical calculation of the photodetachment energy for negative hydrogen, deuterium, and tritium ions, achieving a precision 220 times greater than previous experimental results and providing critical data for antihydrogen physics.
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 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.