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 demonstrates that rapid axial loading of a grating magneto-optical trap (gMOT) using a moving optical molasses overcomes the radial constraints of unbalanced diffracted beams, achieving high loading rates of atoms~s and establishing a robust route for portable, high-flux cold-atom systems.
This paper investigates the superfluid response of dilute bosonic fluids in two-dimensional composite optical potentials by establishing conditions for isotropy, deriving analytical expressions for Leggett's bounds to identify optimal measurement directions, and confirming these findings through numerical simulations.
This paper investigates the rotational phase diagram of quasi-two-dimensional Bose-Einstein condensates in power-law and hard-wall traps, revealing that while weak interactions cause discontinuous transitions between multiply-quantized vortex states and stronger interactions lead to continuous transitions to mixed states, the two confinement types exhibit distinct qualitative behaviors regarding central density stability and scaling properties.
This paper establishes that a one-dimensional image space of the operator serves as a sufficient condition for the zero-overlap phenomenon in pseudostate discretizations, thereby ensuring the asymptotic stability of transition probabilities in ionizing collision and laser-atom interaction processes.
This paper investigates both open-loop and closed-loop measurement feedback control strategies for non-Markovian quantum dynamics in cavity-QED systems, demonstrating how time-dependent decay rates and homodyne detection can be leveraged to modulate steady states and influence the stability of high-dimensional quantum systems.
This paper presents a software-defined radio implementation using quadrature amplitude modulation (QAM) on an UltraScale+ RFSoC platform to generate high-fidelity phase-modulated signals that enable continuous frequency tuning in electronic sideband Pound-Drever-Hall laser locking while compensating for I/Q impairments to achieve sub-0.3% error rates.
This paper proposes that the Pancharatnam phase measured in dual Stern-Gerlach interferometers serves as a topological signature to distinguish between semiclassical and quantum gravity, where a discontinuous phase jump indicates a semiclassical field while a continuous phase confirms gravity's quantum nature via entanglement generation.
This paper utilizes open quantum systems simulation and the Krotov method of quantum optimal control theory to demonstrate that high-fidelity quantum gates () are achievable in noisy static exchange-coupled surface qubits, offering optimized experimental designs that outperform conventional Rabi driving.
This molecular dynamics study demonstrates that ultrasound-assisted cold spray significantly enhances the plastic deformation and interfacial bonding of tungsten through acoustic softening and transient thermal activation, offering a viable solution for the additive manufacturing of refractory metals and heterogeneous alloys.
This paper presents the design, construction, and characterization of a compact, water-cooled Bitter-type electromagnet that utilizes stacked copper arcs with PTFE spacers to generate an optimized magnetic field for Zeeman slowing, achieving rapid electrical switching and efficient thermal management at 200 A.