725 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 proposes a new analytical approximation for the Born-Infeld potential that expresses it as a difference between Coulomb and Yukawa terms to facilitate physical interpretation, enabling closed-form calculations of hydrogen-like atom energy shifts that yield a model-dependent lower bound for the maximum field intensity parameter when compared with high-precision spectroscopic data.
This paper proposes and assesses a feasible experimental protocol using Rydberg-atom arrays to directly test conformal symmetry by optimizing state preparation and calculating the statistical requirements to verify conformal field theory predictions.
This paper presents a compact, low-volume microwave clock using laser-cooled Rb atoms and an additively manufactured cavity, achieving a signal-to-noise ratio of 370 and a mid-term instability of at 30,000 seconds through the implementation of a low-cost mu-metal foil to mitigate quadratic Zeeman shifts.
This study demonstrates the first experimental observation of zero photoemission in a non-atomic system, specifically an icosahedral Ag12W- superatom, confirming theoretical predictions that such complete suppression of electron emission can be deliberately engineered in nearly spherical nanoclusters through systematic control of size and composition.
This paper demonstrates a compact, ultrastable laser system achieving a thermal-noise-limited fractional frequency instability of by combining a self-injection-locked diode laser with a miniature Fabry-Perot cavity, paving the way for integrated photonic frequency references in transportable optical clocks.
This paper demonstrates a compact, single-beam optically pumped magnetometer utilizing a microfabricated 87Rb vapor cell with high buffer gas pressure, achieving a high sensitivity of 11 fT/Hz^1/2 in a small volume and 66 fT/Hz^1/2 in a fully integrated prototype, thereby establishing a pathway for scalable, high-performance magnetic sensing arrays.
This paper formulates a quantum phase space for rigid molecular rotational and nuclear-spin states, classifying molecules into three types to reveal unique features in perrotationally symmetric isomers, such as complete rotation-spin entanglement and robust fiber degrees of freedom that enable fault-tolerant quantum operations and error correction.
Using Fock-space relativistic coupled-cluster theory, this study investigates clock-relevant properties of highly charged ions Cf, Cm, and Bk, identifying specific transitions that exhibit both strongly suppressed systematic frequency shifts and exceptionally large sensitivity to variations in the fine-structure constant, making them promising candidates for next-generation optical clocks and fundamental physics tests.
This paper investigates atomic thermometry in the INRIM ytterbium optical lattice clock, revealing significant discrepancies (up to a factor of four) between temperature estimates derived from perturbed harmonic oscillator and Born-Oppenheimer models, which lead to lattice light shift frequency deviations of up to and underscore the need for refined theoretical modeling in state-of-the-art precision metrology.
This paper demonstrates that large Gaussian basis sets can accurately calculate all-order Wichmann-Kroll vacuum polarization corrections in highly-charged ions, achieving precision comparable to traditional methods while enabling faster convergence for difference-based quantities and facilitating the calculation of screening corrections in lithium-like systems.