593 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 introduces an alternative two-photon Autler-Townes resonance observed on the upper-leg beam in Rydberg ladder systems, which overcomes the limitations of traditional electromagnetically induced transparency in Doppler-broadened media by offering superior signal-to-noise ratios for resolving high-n Rydberg states and enabling frequency stabilization.
This paper establishes a simple, universally applicable bound for background gas collision shifts in single ion clocks by demonstrating that both classical and quantum models yield consistent results where the shift is determined by the Langevin collision rate reduced by a factor accounting for the decoupling of the clock laser due to recoil motion.
This paper establishes a unified framework for realizing shortcuts to adiabaticity by demonstrating that adaptive quantum Zeno measurements, whether stroboscopic or continuous, generate an effective Hamiltonian containing a nonadiabatic geometric connection that naturally reduces to counterdiabatic driving when measurements are performed in the system's instantaneous energy eigenbasis.
This paper presents a quantum-mechanical description demonstrating that microwave shielding enables ultracold polar molecules to exhibit universal Efimov physics, characterized by characteristic trimer binding energy scaling and a universal three-body parameter, which can be experimentally accessed via the sudden approximation.
This paper presents high-fidelity collisional-radiative data for hydrogen, helium, neon, and argon plasma species generated using ATOMIC and FCR codes, which are represented as efficient B-spline surfaces to support accurate tokamak disruption mitigation modeling and runaway electron minimization.
This paper provides a step-by-step guide for converting optical spectra from wavelength to frequency or photon energy units to ensure accurate extraction of intrinsic quantum-mechanical properties, offering clear data analysis and representation guidelines for instructors and students.
This paper analyzes the complex phase accumulation in Mølmer–Sørensen and Light-shift entangling gates for trapped-ion qudits, proposing methods to compensate for these phases and enhance gate robustness to enable scalable qudit-based quantum processors.
This paper investigates how screening and pressure ionization effects in dense plasmas, modeled via an average-atom approach, alter electron-collision cross sections and the resulting line broadening of the B III transition, revealing that while screening generally reduces line widths, pressure ionization induces sharp increases through resonances in the continuum.
This study demonstrates through attosecond streaking simulations that the spectral phase of extreme ultraviolet pulses directly alters intrinsic photoionization time delays, offering a new mechanism for coherent control of ultrafast electron dynamics.
This paper demonstrates a three-laser Doppler-free excitation scheme in warm vapor that achieves a three-fold increase in Rydberg atom density and a four-fold reduction in spectral line-widths compared to traditional counter-propagating configurations, offering significant improvements for Rydberg-based technologies like electric field sensing and photon sources.