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 outlines the scientific potential and practical feasibility of deploying a long-baseline atom interferometer at the South Pole to detect decihertz gravitational waves, leveraging the site's unique low seismic noise and infrastructure to enhance global detector networks and fundamental physics tests.
This paper introduces and summarizes recent experimental results for two primary radiation thermometry standards, the cold atom thermometer (CAT) and the compact blackbody radiation atomic sensor (CoBRAS), which utilize laser-cooled and vapor-phase rubidium atoms to measure blackbody radiation rates for precise temperature determination.
This study investigates the decay dynamics of optically trapped ultracold Dy-K Feshbach molecules across various wavelengths, identifying light-induced losses as the dominant mechanism except near 2000 nm, where inelastic collisions become observable and Pauli suppression significantly reduces collisional losses for weakly bound dimers.
This study demonstrates that the tilt of photoelectron momentum distributions in XUV ionization is governed not only by magnetic quantum numbers but also by the radial structure of atomic orbitals, revealing a wavelength-dependent tilt reversal in argon caused by Cooper-like suppression in the -wave channel due to the 3p orbital's radial node.
This paper presents an all-optical method using spatially selective parametric heating in a passively stabilized beat-note superlattice to deterministically isolate single or bilayer samples of cold dipolar atoms, enabling high-resolution microscopy of long-range interacting systems.
This paper derives a quantum Brownian motion master equation describing the decoherence of a particle's spatial superposition along stationary worldlines in the Minkowski vacuum, identifying two thermal-like contributions arising from the modified field spectrum observed by the particle and differential time dilation across its wavefunction, with specific rates evaluated for hyperbolic and uniform circular motion.
This paper demonstrates a Floquet-engineered toolbox for controlling nonreciprocal light-induced dipolar interactions in tweezer arrays, enabling operations like squeezing and beamsplitting to tune complex eigenfrequencies for exploring non-Hermitian many-body physics and collective quantum optomechanics.
This paper demonstrates that in the semi-classical limit, highly-excited hydrogen atom energy eigenfunctions correspond not to a single classical orbit but to an equal-weight superposition of classical elliptic orbits sharing the same energy and angular momentum, as evidenced by the matching of quantum and classical probability distributions.
This study utilizes a neutral-atom quantum simulator on a Lieb lattice to experimentally and theoretically map out complex density-wave phases, discover a quantum analog of the liquid-vapor transition with hysteretic dynamics, and observe anomalously slow relaxation in an emergent string phase, thereby demonstrating the platform's capability to explore diverse nonequilibrium phenomena in programmable quantum matter.
This paper presents a compact, fiber-integrated neutral atom networking node utilizing a parabolic mirror on an optical chip to achieve high photon collection efficiency (9%) and high-fidelity atom-photon entanglement (0.98), offering a robust, cavity-free building block for scalable quantum networks.