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 an optimized, asymmetric Rydberg gate protocol that achieves high-fidelity entanglement outside the blockade regime by modifying the standard sequence with an additional detuning and quantum control techniques, enabling robust operation with weaker interactions and approaching fundamental fidelity limits.
This paper introduces a universal framework for programmable fermionic quantum processors using globally controlled itinerant fermions, such as neutral atoms in optical lattices, by providing constructive protocols to realize arbitrary fermionic processes through time-dependent control of global parameters like tunneling and interactions.
This paper introduces and experimentally demonstrates a dynamic rephasing protocol for telecom-band warm vapor quantum memories that counteracts Doppler dephasing to extend storage time by 50-fold while preserving high bandwidth and enabling the on-demand storage of multiple time-bin modes.
This paper investigates parity-mixing quantum interference in helium photoionization driven by high-order harmonics and a laser field, identifying four distinct pathways where parity is not conserved, in contrast to traditional parity-conserving two-photon processes.
This paper presents a numerical simulation and experimental proposal for laser cooling and magneto-optical trapping of Group IV atoms, with a specific focus on tin (Sn) as a promising candidate for precision measurement applications due to its accessible Type-II transition.
This paper presents a fully analytic multi-Yukawa screening model that extends bremsstrahlung cross-section calculations to partially ionized high- species, enabling accurate characterization of electron-ion interactions in high-energy environments up to tens of MeV.
This paper presents a watt-class injection-locked diode laser system operating at 399 nm that combines high output power with the frequency stability of a seed laser, demonstrating its effectiveness for atomic physics applications through ytterbium beam spectroscopy.
This paper proposes a statistical model combining random matrix theory and quantum defect theory to simulate ultracold molecular collision complexes, finding that while it aligns with RRKM predictions in the dense resonance limit, it reveals that sparse resonance physics is governed by threshold behavior, suggesting that traditional close-coupling calculations alone may be insufficient to explain the mystery of long-lived "sticky collisions."
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.