587 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 study applies the convergent close-coupling formalism to helium's two-photon double ionization, revealing that while the calculated integrated cross-section is significantly lower than non-perturbative results, the predicted angular correlation pattern aligns remarkably well with existing non-perturbative calculations.
The paper reveals that the quadrupole channel of two-photon double ionization in helium exhibits two distinct correlated electron motion modes, where center-of-mass motion favors parallel emission with large total momentum while relative motion favors antiparallel emission, resulting in significantly different angular correlation widths.
This paper reports the total integrated and triple differential cross-sections for two-photon double ionization of helium in the 42–50 eV photon energy range, revealing a monotonic growth in cross-section and exploring the previously uninvestigated 47–50 eV region through numerical solutions of the time-dependent Schrödinger equation.
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 applying a carefully tuned magnetic field can suppress depolarization collisions in ultracold thulium atoms by a factor of 1000, thereby enabling the efficient utilization of their Zeeman manifold for quantum simulations.
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.
This study demonstrates that subcycle phase matching effects, revealed through two-color laser-assisted photoionization of HHG-generated attosecond pulse trains, cause unexpected spectral redistributions dependent on the carrier-to-envelope phase that cannot be explained by single-atom responses alone.
This paper proposes that relic neutrinos from the Big Bang can be detected via parametric fluorescence, a coherent scattering process in atomic or molecular systems where a massive neutrino decays into a lighter neutrino and a signal photon, offering a promising detection method with event rates potentially reaching one per year in optimized target volumes.
This paper presents a quantum logic spectroscopy scheme using simultaneous co-magnetometry to measure the ground state factors of a single Ti ion with uncertainty, achieving agreement between experimental results and new theoretical predictions while offering a method applicable to various atomic species, including those not directly laser coolable.
This paper presents a numerical study demonstrating that controlled non-adiabatic dynamics, specifically synchronized with intra-site breathing oscillations, enable fast momentum-selective transport of Bose-Einstein condensates in optical lattices with high fidelity and narrow momentum distributions, offering a significant speedup over traditional adiabatic protocols for quantum sensing applications.