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 reports the first experimental determination of the D1 magic wavelength for fermionic K at 1227.54(3) nm, a critical advancement that eliminates state-dependent light shifts to enable high-fidelity cooling, imaging, and loading for scalable neutral-atom quantum arrays.
This paper reports the first experimental measurements of the absolute wavenumbers and radiative lifetimes for the 9p and 10p excited states in francium using Collinear Resonance Ionization Spectroscopy, providing a precise test of relativistic coupled-cluster theory that shows good agreement for lifetimes and relative energies despite a small offset in absolute energies.
This paper demonstrates that using a weak bright squeezed vacuum field alongside a strong coherent driver can enhance strong-field ionization asymmetries by orders of magnitude compared to classical fields, a quantum effect driven by nonclassical field statistics that selectively modifies tunneling probabilities to enable the reconstruction of sub-cycle ionization dynamics.
This paper presents a compact, dual-solenoid magnetic coil and control circuit capable of rapidly changing the magnetic field by up to 36 Gauss in 3 microseconds, enabling the study of non-equilibrium quantum dynamics in cold atom experiments via Feshbach resonances.
This paper investigates the single-particle momentum distribution of mass-imbalanced Efimov states in noninteger dimensions, revealing that contact parameters grow significantly as the dimension decreases from three toward a critical value where continuum scale symmetry emerges, thereby influencing observables in resonantly interacting trapped Bose gases.
This paper presents a hybrid optical scheme combining fixed optics (axicons and prisms) with a digital micromirror device to efficiently generate high-quality, near-ideal hollow beams of various shapes, enabling the creation of highly homogeneous cold atom samples in customizable box potentials for advanced quantum many-body physics research.
This paper presents a stable, phase-locking-free method for generating optical lattices by passing a single laser beam through a prism with n-fold symmetric facets, successfully demonstrating various configurations like triangular and ten-fold quasi-crystal lattices with minimal lattice constant variation and positional drift.
This paper derives a generalized Schawlow-Townes limit for feedback oscillators based on quantum mechanics and causality, demonstrating that while devices like super-radiant lasers can reach this fundamental linewidth bound, it can be surpassed through quantum engineering techniques such as atomic spin squeezing.
This paper demonstrates the practical viability of a novel, constant-depth Quantum Phase Difference Estimation (QPDE) algorithm for accurately calculating excitation energy gaps in diverse spin systems on noisy intermediate-scale quantum (NISQ) devices, achieving 85% to 93% accuracy through advanced noise suppression techniques.
This paper demonstrates a scalable, low-cost photonic-integrated platform featuring a tunable silicon nitride resonator that stabilizes multiple lasers to an atomic transition, enabling compact and portable quantum sensing and computing applications.