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 proposes a bichromatic tweezer scheme using two carefully chosen wavelengths to engineer magic trapping conditions that suppress differential light shifts and dephasing for qudits encoded in the state of Sr, thereby enabling robust qudit-based quantum computing.
This paper demonstrates that elliptical radio-frequency polarization coherently couples multiple magnetic sublevels in Rydberg atoms, fundamentally modifying Autler-Townes spectra to produce polarization-dependent multi-peak structures that are resolved experimentally and accurately predicted by a comprehensive multi-level Hamiltonian.
This paper develops an analytical ADK-like tunneling ionization model within space-fractional quantum mechanics, deriving a closed-form exponent that reveals how the fractional kinetic operator deforms the conventional ionization rate scaling to and introduces a characteristic factor.
Using integral-field spectroscopy, this study detects unexpected helium emission lines in Balmer-dominated shocks of three Type Ia supernova remnants, revealing enhanced helium abundances in some cases and proposing helium as a new diagnostic tool for constraining shock physics and Type Ia progenitor systems.
This paper establishes and experimentally verifies the "Kubo-Thermalization correspondence," an exact theoretical link connecting long-time quantum thermalization dynamics to short-time linear-response spectra in strongly interacting systems, thereby enabling the inference of thermalization behavior from equilibrium measurements.
This paper employs a relativistic hybrid configuration-interaction and coupled-cluster approach to calculate hyperfine-structure constants for various states of the Sc ion, achieving improved agreement with experimental data and deriving a nuclear quadrupole moment of b that aligns with recent molecular findings.
By means of few-level models, this study demonstrates that sub-threshold harmonics in aligned molecules exhibit pronounced phase alternations and polarization behaviors that depend on their energy relative to transition frequencies, thereby enabling the prediction of a mirrored polarization in higher-order harmonics for systems with orthogonal transition dipole moments.
This study employs high-level relativistic coupled-cluster calculations to determine critical atomic properties of the Th ion, enabling precise estimates of nuclear charge radii and moments while simultaneously revealing significant higher-order relativistic effects that are essential for advancing nuclear clock technology and fundamental physics research.
This paper defines and characterizes completely positive, non-signalling non-Markovian quantum dynamics as an integro-differential equation extending the Lindblad formalism, enabling the exact calculation of multi-time correlations and the derivation of memory-encoded spectral features without relying on the regression theorem.
This study demonstrates that a magneto-optical trap acting as a low Reynolds number cold atom fluid exhibits kinematic reversibility under controlled external forces despite interparticle interactions, while also revealing conditions where system hysteresis leads to deviations from this reversibility.