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 previous bounds on the axion-photon coupling by over an order of magnitude using the SACLA X-ray free electron laser and the Borrmann effect in Laue crystals, achieving the most stringent laboratory constraints to date for QCD axions in the 3.46–3.48 keV mass range.
This paper experimentally demonstrates the realization of a synthetic monopole in an ultracold spin-1 ensemble, where tunable spin-tensor coupling is used to engineer field anisotropy, directly measure the topological Chern number, and observe a topological phase transition.
This paper demonstrates a robust, high-flux strontium source capable of producing quasi-continuous sub-microkelvin samples without a high-finesse cavity-stabilized laser, utilizing instead a dispersion-optimized fiber frequency comb referenced to either a metrology-grade RF signal or a tunable source stabilized by a magneto-optical trap.
This paper investigates a previously unreported lineshape-asymmetry-caused shift (LACS) in atomic interferometers arising from frequency-chirped laser fields during Ramsey pulses, demonstrating that this shift scales as and thus becomes a significant metrological error source for compact devices with short free-evolution times.
This paper proposes that a long-range parity-violating interaction mediated by the exchange of two neutrinos effectively acts as a contact term in atomic systems, producing a correction that resolves the existing discrepancy between the Standard Model prediction and experimental measurements of cesium parity violation while yielding weak mixing angle and weak charge values consistent with the Standard Model.
This paper presents a breakthrough in Rydberg-atom electric field sensing by overcoming conventional low-frequency limitations through auxiliary modulation and a paraffin-coated vapor cell, enabling electrode-free detection across a wideband range from 0.5 Hz to 10 kHz with state-of-the-art sensitivities.
This paper reports a laboratory measurement demonstrating that while low concentrations of impurities do not affect Coulomb crystallization thresholds in laser-cooled ion crystals, sufficiently high concentrations induce a linear shift due to local pinning, providing critical experimental data to refine models of multicomponent Coulomb matter in stellar environments like white dwarfs and neutron stars.
This study demonstrates the breakdown of the widely used isotropic asymptotic approximation in two-colour photoionisation by employing a self-referencing approach with non-consecutive extreme ultraviolet harmonics, revealing significant deviations between theoretical predictions and experimental measurements of Wigner delays.
This paper investigates the non-adiabatic quantum dynamics of ultralong-range high- Rydberg molecules using a vibronically coupled two-channel model, revealing that -dependent coupling between trilobite and butterfly states can induce non-adiabatic stabilization and multi-well tunneling effects that enhance molecular lifetimes and dynamical complexity.
This theoretical work demonstrates that applying optimal control theory to Bragg diffraction protocols significantly minimizes intrinsic multi-path diffraction phase shifts in high-order Mach-Zehnder atom interferometers, reducing systematic errors to the microradian level even for finite-temperature wavepackets.