630 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 the emergence of roton instability in self-bound quantum droplets with finite-range soft-core interactions, demonstrating that increasing interaction strength and range leads to roton softening and eventual density modulation instability, as evidenced by the extended Gross-Pitaevskik equation and static structure factor analysis.
This study incorporates the Breit interaction into all-orders correlation potential calculations for Cs and Fr isoelectronic sequences, revealing that while these corrections significantly improve fine-structure intervals and highlight large effects in f-states, they do not fully resolve existing discrepancies between theoretical energy levels and experimental data.
This paper develops a Bloch-equation model for PWM-modulated Bell-Bloom magnetometers to demonstrate that maximizing signal amplitude does not necessarily optimize sensitivity, thereby providing a framework for duty-cycle and pump-rate optimization based on the interplay between amplitude and phase response.
This paper introduces and experimentally validates a novel dynamically decoupled hyper-Ramsey (DDHR) spectroscopy protocol on a superconducting quantum processor, which utilizes modified refocusing pulses to significantly enhance fringe contrast and robustly eliminate residual light-induced frequency shifts caused by probe intensity fluctuations and decoherence.
This paper establishes the fundamental performance limits and operating regimes of collective quantum logic spectroscopy, demonstrating that coupling spectroscopy ion ensembles to logic ions enables scalable, quantum-limited precision measurements and robust many-body readout for next-generation optical clocks and quantum information processing.
This study reveals that a single ion immersed in an ultracold polar gas induces the self-assembly of molecules into stable, concentric crystalline rings governed by the interplay of charge-dipole attraction and intermolecular repulsion, forming a distinct class of mesoscopic molecular ions with intrinsic shielding properties.
This paper presents new relativistic atomic data, including energy levels, recombination rates, and electron-impact excitation cross-sections for the first five ionization stages of Neodymium, to improve non-LTE modeling of kilonova spectra and constrain r-process nucleosynthesis yields.
This study experimentally demonstrates the formation and transition between competing triangular and stripe supersolid orders in a two-dimensional dipolar quantum gas, characterizing their critical behavior and observing both phases in coherent and incoherent regimes to establish a versatile platform for investigating intertwined symmetry-breaking phenomena.
This paper proposes a protocol using static and microwave electric fields to shield polar molecules from collisional losses, enabling the high-fidelity preparation of single molecules in optical tweezers via controlled spilling from small ensembles.
This paper demonstrates the simultaneous trapping and cooling of Rb, Rb, and Cs in a triple-species magneto-optical trap using a compact all-fibre laser system, characterizing interspecies losses to confirm the system's suitability for future multi-species cold-atom interferometry applications.