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 Harrow-Hassidim-Lloyd (HHL) algorithm to qutrits by introducing Weyl-Heisenberg gadgets and a practical implementation scheme, demonstrating that the qutrit version achieves comparable precision with fewer qudits and a similar number of two-qudit gates compared to the traditional qubit-based approach.
This paper reports the experimental preparation and measurement of long-lived metastable states in the 4f5d6s configuration of a single trapped Yb ion, revealing lifetimes ranging from 0.92 s to over 30 s that are corroborated by atomic structure calculations and offer new prospects for quantum information and optical clock applications.
The paper proposes a novel nuclear interferometer utilizing the thorium-229 clock transition to detect ultra-light dark matter, offering enhanced sensitivity to variations in fundamental constants and the QCD sector that could complement and surpass existing terrestrial clock experiments.
This paper establishes a comprehensive Fisher information-based framework for Rydberg atom microwave electrometry that derives an analytical sensitivity expression combining photon shot noise and atomic response, demonstrating that cesium vapor systems can achieve robust sub-nanovolt sensitivity under optimal conditions.
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 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 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 demonstrates and validates a technique for accurately retrieving atomic ionization phases and time delays from XUV photoelectrons streaked by a circularly polarized IR field, confirming its equivalence to RABBITT simulations via numerical solutions of the time-dependent Schrödinger equation for hydrogen.