630 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 comprehensive theoretical study of single-photon ionization cross sections for molecular hydrogen using three distinct numerical methods—time-dependent propagation, multi-channel configuration-interaction, and complex-scaling—which demonstrate excellent mutual agreement while highlighting the need for more precise experimental data at high photon energies.
This paper reports the realization of narrow-line magneto-optical traps for titanium isotopes (Ti, Ti, and Ti) using a 1040 nm transition, achieving microkelvin temperatures and high spin polarization through a two-stage cooling process that also yields precise measurements of the transition linewidth and isotope shifts.
This paper demonstrates the realization of a programmable non-Markovian spin oscillator in a hot vapor co-magnetometer, where tunable feedback delay and gain induce a hierarchy of dynamical phases—including time-crystalline responses and frequency combs—establishing time-delayed feedback as a versatile strategy for controlling non-equilibrium matter.
This study demonstrates that aluminum monofluoride (AlF) molecules survive collisions with ambient temperature vacuum walls with high probability, enabling their thermalization and accumulation in storage vessels to achieve densities near , which paves the way for compact, portable traps for neutral molecules.
This review presents a unified two-step method of symmetry breaking and restoration to describe universal strongly correlated phenomena, such as electron crystallization and rotating molecules, across diverse finite systems including quantum dots, ultracold Bose gases, and traditional nuclear and chemical fields.
This theoretical study demonstrates that an optical centrifuge can effectively control molecular rotation in the strong ro-vibrational coupling regime by exciting high rotational states with minimal vibrational broadening, outperforming transform-limited Gaussian pulses which induce comparable rotation but cause substantial vibrational wavepacket spreading.
This paper reports the direct measurement of a 17.8-minute collision-free lifetime for the metastable state in ions, along with the identification of a 701 nm repump transition and the characterization of collisional quenching, establishing the state's viability for atomic clockwork and quantum information processing.
This paper presents a 750 ml additively manufactured titanium vacuum package integrating a low-power chip-based oven, a planar grating MOT chip, and a miniaturized pump to successfully trap up to strontium atoms, marking a significant step toward compact, mobile quantum sensor systems.
This paper reports on the GRASIAN collaboration's development and characterization of a cryogenic hydrogen beam, detailing methods to reduce background and detect slow atoms to enable the first observation of gravitational quantum states in atoms and precision spectroscopy.
This paper investigates multipassage Landau-Zener tunneling oscillations in rubidium and caesium atomic qubits subjected to a transverse/longitudinal dual-dressing configuration, revealing new coherence features and developing a specialized perturbation treatment to describe the system's adiabatic and non-adiabatic evolution outside the standard high-frequency Floquet paradigm.