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 presents a Hessian-based calibration method that leverages the low-rank structure of quantum-control landscapes to efficiently optimize high-dimensional waveforms for neutral atom gates, experimentally demonstrating rapid convergence and high fidelity (0.99902) for a robust controlled-Z gate on 171Yb qubits.
This paper theoretically demonstrates that a pair of strongly coupled qubits in a two-photon driven cavity exhibits hyperradiance as a signature of entanglement and can function as a quadrature-squeezed, two-photon source when an intracavity Kerr nonlinearity induces photon blockade.
This paper theoretically investigates ultra-cold dipolar atoms in radially coupled concentric annular traps, revealing how rotation and barrier strength induce particle imbalances, density modulations, and distinct vortex configurations—including unique Josephson vortices at ring junctions—that can be experimentally identified through characteristic interference patterns.
By rigorously solving the time-dependent Schrödinger equation for ionization driven by extreme ultraviolet pulses, this study reveals that photoelectron combs exhibit angle-dependent shifts and substructures due to full radiation pressure effects, while also demonstrating that rescattering causes a loss of coherence in these structures as the number of pulses increases.
This paper demonstrates that an interacting Rydberg vapour driven by a modulated laser field can effectively predict time series, with its learning capability significantly enhanced by emergent collective amplification near a non-equilibrium phase transition.
This paper theoretically demonstrates that tuning rotation frequency in Bose-Einstein condensates can induce a superfluid-to-supersolid transition and trigger re-entrant phases through a vortex-driven mechanism where quantized vorticity elevates the Goldstone mode to a finite-energy roton, thereby revealing a fundamental coupling between topological defects and crystalline order.
The paper proposes a Rydberg-atom-based single-photon detector for dark matter haloscope experiments in the 10–50 GHz frequency range, which overcomes quantum measurement noise limitations of standard linear amplifiers to achieve scan rate enhancements up to for searching QCD axions with masses above 40 eV.
This paper reports the experimental observation of phase-coherent reaction dynamics and two-atom entanglement in Bose-condensed atoms and molecules near a Feshbach resonance, demonstrating phase doubling analogous to optical frequency doubling and establishing these quantum features as fundamental to "quantum many-body chemistry."
This paper reports the development and demonstration of the first continuous-wave vacuum ultraviolet laser at 148.4 nm with sub-hertz linewidth, generated via four-wave mixing in cadmium vapor, which overcomes the final technical barrier to realizing a Th-based nuclear clock and enables new frontiers in quantum metrology and precision spectroscopy.
This paper demonstrates that warm rubidium vapor cells utilizing large optical depth and optimized near-resonant EIT schemes can achieve optical memory efficiencies of up to 44% and storage times of 1.5 ms across both and isotopes on their D transitions, providing practical guidelines for enhancing quantum memory performance in simplified experimental configurations.