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 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 reports the first successful search, observation, and coherent manipulation of electric-quadrupole forbidden vibrational transitions in single trapped nitrogen molecular ions (N) using quantum-logic spectroscopy, thereby overcoming the challenge of complex molecular energy structures to enable new applications in precision spectroscopy, molecular qubits, and infrared clocks.
This paper reports the precise measurement of the zero crossing of the differential scalar polarizability for the Ba clock transition at 623.603(17) THz, a result that validates atomic structure calculations, enables an accurate model for blackbody radiation shift assessments, and demonstrates the approach's applicability to other alkaline-earth ions.
This paper evaluates the performance of the Binary-Encounter Bethe (BEB) model when utilizing experimental ionisation thresholds instead of theoretical ones, demonstrating that this adjustment improves the accuracy of partial ionisation cross sections for predicting subsequent plasma processes.
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 proposes a quantum simulation scheme using ultracold atoms in optical lattices to realize the three-band Emery model, enabling the study of high-temperature superconductivity in cuprates and nickelates on system sizes that are currently inaccessible to numerical methods.
This study demonstrates that unshielded dielectric objects, such as bare optical fibers, can be viably integrated into cryogenic surface electrode ion traps, as their induced stray electric fields are stable and compensable, and their contribution to ion motional heating remains manageable at cryogenic temperatures.
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 reports the quantum simulation of massive relativistic fields in 2+1 dimensions using a two-component Bose-Einstein condensate to encode the sine-Gordon model, successfully demonstrating both tunable relativistic dispersion in the perturbative regime and non-perturbative topological domain walls.