566 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 resolves concerns regarding laser frequency noise in large momentum transfer (LMT) clock atom interferometers by demonstrating that population error scales linearly rather than quadratically with the number of pulses and that parasitic path contributions are negligible, thereby confirming the viability of high-fidelity LMT sensors.
This paper presents a compact, single-cell source of a continuous cold-atom beam that achieves 3D cooling via an integrated off-axis moving optical molasses and 2D MOT, delivering high flux with ultra-low light shift and high fringe contrast suitable for field-deployable atomic clocks and interferometers.
This paper presents the first direct spectroscopic measurement of the Casimir-Polder force in the intermediate regime by observing kHz-frequency energy level shifts in ultracold strontium atoms positioned 189 nm from a dielectric surface, confirming quantum electrodynamics predictions and bridging the gap between short-range and long-distance theoretical approximations.
This paper presents a theoretical study of Compton scattering of linearly polarized X- and -rays by K-shell electrons in hydrogen-like Ne and Pb ions using a relativistic S-matrix approach, comparing the results with free-electron and impulse approximations to assess the impact of electron binding effects on double-differential cross sections and photon polarization.
The authors demonstrate a thermal rubidium-87 atom chip interferometer that utilizes on-chip microwave waveguides to spatially split internal states while maintaining magnetic trapping, achieving a maximum separation of m and observing interference fringes with 8% contrast limited by velocity differences.
This paper presents an optimized, asymmetric Rydberg gate protocol that achieves high-fidelity entanglement outside the blockade regime by modifying the standard sequence with an additional detuning and quantum control techniques, enabling robust operation with weaker interactions and approaching fundamental fidelity limits.
This paper introduces a universal framework for programmable fermionic quantum processors using globally controlled itinerant fermions, such as neutral atoms in optical lattices, by providing constructive protocols to realize arbitrary fermionic processes through time-dependent control of global parameters like tunneling and interactions.
This chapter reviews experimental advances in studying attractive Bose-Einstein condensates, highlighting techniques for controlling interactions and observing key phenomena such as wave collapse, bright solitons, vortex solitons, and nonclassical signatures of modulational instability across various dimensions.
This paper demonstrates that attosecond streaking enables direct, phase-sensitive characterization of the quantum noise and coherent properties of intense light fields on sub-cycle timescales by analyzing delay-resolved photoelectron spectra through a Feynman-Vernon framework.
This paper reports the deterministic generation and site-resolved reconstruction of topological spin textures, including skyrmions and domain walls, in a two-dimensional crystal of over 150 trapped ions, establishing the platform as a powerful tool for engineering complex spin configurations and exploring topology-dependent dynamics in long-range interacting quantum systems.