578 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 investigates practical methods for realizing a proposed SI second definition based on the geometric mean of multiple clock transitions by deriving uncertainty expressions, comparing geometric versus arithmetic combination routes, and developing time-weighted strategies to minimize errors from dead time and non-overlapping clock operations.
This paper proposes a quantum simulation scheme using microwave-driven open-shell molecules in optical traps to realize a spin-1 Hamiltonian that hosts the Haldane phase in one dimension, demonstrating its robustness against SU(3) symmetry-breaking terms and feasibility with molecules like MgF.
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 paper demonstrates a proof-of-principle integrated methodology combining in-trap ion-molecule reactions within a radiofrequency quadrupole cooler-buncher with collinear laser spectroscopy to successfully produce and perform high-resolution spectroscopy on , thereby establishing a practical route for future studies of short-lived radioactive molecules like those containing .
This paper introduces a velocity-enabled neutral-atom architecture that utilizes controlled Doppler shifts and spatial phase mapping to perform selective mid-circuit operations on moving atoms using only global beams, thereby reducing hardware overhead and enabling the efficient implementation of quantum error correction primitives and high-fidelity entangled states.
This paper demonstrates a strontium thermal beam atom interferometer gyroscope capable of measuring large rotation rates exceeding 6 rad/s by utilizing a transit-time-resonant phase modulation technique to detect phase shifts while rejecting background noise and fringe amplitude variations.
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.
The authors propose using ultracold high-spin YbCr molecules, formed via magneto-association, as a prime candidate for next-generation searches for the electron's electric dipole moment and other beyond-Standard-Model physics due to their favorable properties for polarization and large intramolecular electric fields.