728 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 robust, modular cesium magneto-optical trap utilizing diverging laser beams and fiber-coupled optics to achieve stable operation with up to atoms and sub-10 K temperatures, while also demonstrating successful trapping in a non-conventional diagonal beam geometry.
Using a metallic magnetic calorimeter to measure the transition energy in muonic Be with unprecedented precision, this study determines a nuclear charge radius of 2.5506(51) fm that is significantly more accurate than previous values and marks the first such determination via muonic x-ray spectroscopy with microcalorimeters.
This paper presents a quantitatively validated method using Single-Pass Absorption Spectroscopy (SPAS) and a comprehensive density-matrix model to accurately determine the rubidium atomic number density in MEMS vapor cells across a wide range of temperatures, laser powers, and cell lengths, thereby optimizing their performance for quantum sensing and communication applications.
This paper reassesses the dominant clock-active site in , using thermodynamic estimates and density functional theory to demonstrate that it is an isolated thorium substitution charge-compensated by fluorine interstitials rather than a thorium dimer, thereby providing a microscopic basis for reducing linewidth broadening in solid-state nuclear clocks.
This paper proposes and numerically validates a scheme to nearly eliminate motional dephasing in Rydberg polaritons by utilizing velocity memory or phase-correction protocols during storage, thereby enabling robust quantum nonlinear optics applications such as single-photon transistors and deterministic quantum information processing.
This paper establishes a sub-kHz laboratory benchmark for the astrophysically significant 12.2 GHz methanol transition by using optical triangulation of near-infrared rovibrational lines to determine its frequency with 130 Hz absolute uncertainty, thereby enabling more precise tests of fundamental physics regarding the proton-to-electron mass ratio.
This paper presents the first constraints on high-frequency gravitational waves in much of the 100 kHz to 100 MHz range, although parts of this region have been previously probed by the Holometer and bulk acoustic wave devices. By utilizing optical precision spectroscopy to detect the modulation of photon frequencies in laser cavities, this method offers a path toward significantly enhanced sensitivity and an extended detectable frequency range of at least 1 GHz.
This paper proposes a fast, high-fidelity nuclear-spin entangling gate for divalent atoms in large-scale arrays that operates via a single global laser pulse under a weak magnetic field, leveraging strong Rabi frequencies to mitigate Rydberg-state decoherence while ensuring field uniformity.
This review synthesizes theoretical foundations and experimental milestones to explore how Rydberg atoms, with their strong long-range interactions, serve as a versatile platform for quantum simulation and the study of novel many-body phases and non-equilibrium dynamics.
This paper demonstrates that coherently controlled quantum probes offer a strictly superior operational framework for learning many-body systems compared to conventional response theory, as they can access anti-commutator and mixed-order correlators to reveal fluctuations, non-equilibrium structures, and entanglement entropy with resource scaling dependent on correlation complexity rather than system size.