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 paper presents a consensus-based algorithm that optimizes qubit positions on neutral atom platforms to tailor interatomic interactions, thereby accelerating convergence and mitigating barren plateaus in variational quantum algorithms for ground state minimization problems.
This paper demonstrates through large-scale simulations and analytical estimates that superradiance in disordered waveguide quantum electrodynamics remains robust against strong spatial and spectral disorder, driven by a spontaneous self-organization of spins that optimizes constructive interference and leads to mirror-asymmetric correlations.
This paper demonstrates that a single trapped rubidium atom acting as a "quantum jump photodetector" can successfully detect individual narrow-band laser photons embedded in strong sunlight, achieving a communication rate of 0.5 bits per symbol and offering potential applications for daytime LIDAR and free-space optical communications.
Researchers achieved a relative precision of in determining the ground-state hyperfine constant of ions by measuring magnetically insensitive microwave transitions in a linear Paul trap while accounting for high-order Zeeman effects.
This paper presents a perturbative quantum description of the scattering between 12C60 fullerene and 40Ar atoms at cryogenic temperatures, highlighting how the molecule's icosahedral symmetry dictates unusual selection rules for rotational quenching and providing calculations of its polarizability to evaluate long-range van der Waals interactions.
This paper characterizes Feshbach resonances in all lithium isotopologues by refining interaction potentials with spectroscopic data and threshold measurements, revealing that the heteronuclear system exhibits narrow, triplet-dominated resonances distinct from its homonuclear counterparts, thereby establishing a foundation for creating ultracold molecules across all isotopologues.
This paper presents the first comprehensive set of relativistic distorted-wave calculations for fine-structure-resolved electron impact excitation cross-sections and radiative transition probabilities of neutral tungsten (WI), emphasizing the critical role of metastable states in collisional-radiative modeling for plasma diagnostics.
This paper theoretically investigates the polarization-dependent dynamics of laser-assisted (e,2e) ionization of atomic hydrogen by twisted electron beams, revealing that circularly polarized fields yield larger cross-sections and distinct angular distributions compared to linear polarization, while also demonstrating that the triple differential cross-section is highly sensitive to the orbital angular momentum and phase differences in coherent superpositions of twisted projectiles.
By solving the time-dependent Schrödinger equation and evaluating the complex double photoionization amplitude, the authors predict a significant time delay in two-electron photoemission from helium, a finding that calls for future attosecond streaking experiments to further elucidate this strongly correlated ionization process.
This paper employs the non-relativistic random phase approximation with exchange to calculate and analyze valence shell photoionization time delays for noble gas atoms (Ne, Ar, Kr, and Xe) across a 200 eV energy range, validating the results against experimental data to reveal fundamental atomic physics insights accessible through attosecond measurements.