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 reports high-precision laser-induced-fluorescence spectroscopy of the transition in neutral zinc, measuring isotope shifts for all stable isotopes and resolving the hyperfine structure of to provide essential parameters for narrow-line cooling and the development of optical clocks.
This study investigates the generation of tunable mid-infrared radiation and secondary satellites in air via two-color femtosecond filaments, revealing through experiments and simulations that while plasma nonlinearities broaden frequencies, the Kerr nonlinearity plays the dominant role in amplifying four-wave mixing signals prior to the emergence of weaker secondary radiations.
This paper demonstrates that dephasing noise in a multimode cavity induces a hierarchical sequence of dynamical regimes and unexpectedly enhances the ballistic expansion of polariton wave-packets, sustaining this spreading far beyond the microscopic dephasing time.
This paper presents and experimentally validates a purely geometric two-qubit swap gate using fermionic qubit doublons in dynamical optical lattices, which achieves intrinsically protected, high-fidelity quantum operations () by leveraging quantum statistics and symmetries to eliminate dynamical phase errors.
This paper presents a theoretical framework based on the strong-field approximation to analyze and distinguish overlapping above-threshold ionization and laser-assisted photoemission structures in the photoelectron spectra of atoms driven by combined high-frequency and intense low-frequency laser fields.
This paper demonstrates the emergence of strong spin-motion coupling in the ultrafast dynamics of Rydberg atoms within an optical lattice and proposes a method to arbitrarily tune this coupling, thereby expanding the Rydberg simulation toolbox to include motional degrees of freedom.
The authors developed a stable, injection-seeded optical parametric amplifier system to generate 480 nm, 10-picosecond laser pulses, achieving approximately 90% ultrafast excitation probability for Rubidium Rydberg atoms while reducing energy fluctuations from 30% to 6%.
This paper demonstrates the acoustic Purcell effect in a diamond color-center spin qubit by engineering a nanomechanical resonator that enhances spin-phonon coupling, resulting in a ten-fold increase in spin relaxation rates and enabling broadband phonon spectroscopy up to 28 GHz.
This paper proposes measuring parity non-conservation in the S-P transition of tin isotopes as a sensitive probe for new physics, arguing that analyzing isotope ratios effectively cancels atomic-structure uncertainties and minimizes neutron skin effects to achieve unprecedented precision.
This paper demonstrates that Bell correlations in entangled Dirac wavepackets arise from source-prepared amplitude and phase coherence, yielding a separation-dependent CHSH value that transitions from the maximal quantum violation at zero separation to a coherence-controlled asymptotic limit, thereby supporting a wave-realist interpretation where nonseparable quantum correlations are compatible with relativistic causal locality without requiring superluminal causation.