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 demonstrates a miniaturizable three-photon Rydberg electrometry scheme for Cesium atoms using a J-level coupling and external cavity diode lasers, achieving competitive electric field sensitivity of 27 μV m⁻¹ Hz⁻¹/² at 4.7 GHz without requiring tapered amplifiers or frequency doubling crystals, while also exploring a modified population repump readout configuration.
This paper proposes that quantum sensors can detect bursts of ultralight bosonic fields emitted during violent astrophysical events, thereby establishing a new multimessenger astronomy channel that remains viable even when accounting for matter screening effects.
This paper develops a model to estimate the upper bound of interference effects in multi-pass cells on laser-induced muonic hydrogen hyperfine transitions, concluding that while neglecting these effects can theoretically overestimate transition probabilities, they are negligible under the specific experimental conditions studied.
This paper introduces a fully relativistic close-coupling approach that incorporates plasma screening effects to model Stark broadening, resolving theoretical bottlenecks in electron-ion collisions and providing a quantum-mechanical interpretation of screening factors for improved plasma diagnostics.
This paper demonstrates a programmable high-dimensional temporal mode processor using a Raman quantum memory in warm cesium vapor, which enables on-demand storage, filtering, and conversion of orthogonal temporal waveforms to serve as a coherent interface between MHz- and GHz-bandwidth modes for scalable quantum networks.
This paper demonstrates that a driven-dissipative system coupling the Landau levels of a charge-neutral particle in a synthetic gauge potential to a quantized optical cavity can be effectively modeled as two highly nonlinearly coupled quantum harmonic oscillators, giving rise to hybrid "Landau polaritons" with unique entanglement, squeezing, and diverse nonequilibrium dynamics.
This paper proposes a method to resolve the ambiguity in vector magnetometry caused by anti-parallel magnetic fields by utilizing structured light and Fourier analysis of absorption profiles in optically polarized atomic vapor to achieve unambiguous, complete characterization of arbitrarily oriented magnetic fields.
This paper presents the first full-dimensional quantum scattering calculations for rovibrationally excited HD+HD collisions, identifying near-resonant transitions and low-energy resonances dominated by l=3 partial waves that agree with previous experimental cross sections and provide rate coefficients for temperatures ranging from 0.1 K to 200 K.
This paper derives an analytic expression for the Doppler residual lineshape in thermal Rydberg ladder EIT, experimentally demonstrating a record-breaking two-photon energy resolution of 2.04 MHz (theoretically limited to 1.84 MHz) for Rubidium, which is approximately twice as narrow as previous estimates and measurements.
This paper demonstrates that combining the geometric Berry phase with non-Hermitian dissipation enables a fundamentally new amplification mechanism where slow parameter modulation converts a lossy oscillator system into one with gain, a phenomenon uniquely driven by the complex-valued Berry phase.