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 extends the established link between photoionization cross sections and attosecond time delays near Cooper minima from noble gases to alkali and alkaline-earth metal atoms, demonstrating that a fully relativistic formalism is required to resolve the distinct, oppositely winding phase variations of the and ionization channels that vanish in nonrelativistic treatments.
This paper reports the first magneto-optical trapping of the fermionic titanium isotopes Ti and Ti by determining their hyperfine structures and isotope shifts through combined theoretical and spectroscopic analysis, which enabled the successful loading of atomic traps directly from a sublimation pump.
This paper presents new level-resolved ionization cross-section calculations for Te I–III using the Flexible Atomic Code to address the lack of non-thermal electron interaction data, demonstrating that configuration average approximations yield accurate results that significantly improve ionization balance models for kilonova ejecta.
This paper proposes a robust, scalable scheme for deterministically loading single microwave-shielded molecules into optical tweezer arrays with high fidelity and low entropy by utilizing interaction blockade to prevent multiparticle occupancy, thereby enabling large-scale polar molecule arrays for quantum technologies.
The authors report a breakthrough in compact vapor-cell clock technology by developing a 25-liter molecular iodine optical clock that achieves a record-breaking fractional frequency instability of , surpassing previous vapor-cell limits by nearly an order of magnitude through a novel monolithic, temperature-controlled design.
Motivated by the ATOMKI anomalies, this study employs the Gaussian Expansion Method to predict X17-induced Lamb shifts and hyperfine splittings in muonic atoms up to Z=15, identifying specific isotopes like muonic deuterium, helium ions, and silicon-29 as promising probes to distinguish between vector and pseudoscalar fifth-force mediators.
This paper demonstrates a sustainable neutral-atom quantum computing framework that maintains high-fidelity two-qubit gates (~99.8%) across deep, repetitive circuits by integrating mid-circuit operations, including non-destructive erasure detection and in-situ cooling, to actively manage motional heating and atom loss for continuous error correction.
This study revisits Cherepkov's theory of spin-resolved photoionization in chiral molecules to demonstrate that the ten independent parameters governing spin- and enantio-sensitive observables can be reduced to moments of three fundamental geometric pseudovectors arising solely from electric dipole interactions.
This paper introduces a novel approach for solving vertex graph coloring problems using coherent annealing on Rydberg-qudit atom arrays, where distinct same-parity Rydberg levels encode colors, demonstrating robust optimization for chromatic numbers up to three while analyzing and mitigating interaction-induced errors to enable future scaling for real-world integer optimization.
This paper demonstrates that chiral molecules support time-even spin-momentum correlations in photoionization that are revealed only through conditioned measurements, arguing that such correlations constitute the fundamental origin of chirality-induced spin selectivity (CISS) phenomena and identifying the specific molecular pseudovectors governing these spin-conditioned photoelectron currents.