587 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 proposes a cryogenic source concept that generates high-flux, ultra-cold atomic tritium via electron dissociation of solid T2 films and buffer-gas cooling, enabling precision spectroscopy of the triton charge radius and significantly improving neutrino mass measurements by eliminating molecular final-state broadening.
By identifying parametric oscillatory instability as the limiting factor caused by MHz-frequency bulk acoustic modes in high-NA optical cavities and mitigating it through the use of low- mirrors, researchers successfully achieved ultrahigh continuous-wave intensities exceeding 500 GW/cm.
This paper reveals that symmetry-breaking electron dynamics driven by the target field lift half-cycle cancellation in photoelectron dipole emission to generate a second-harmonic signal that directly encodes the instantaneous electric field, thereby enabling ultrabroadband optical-field sampling and waveform retrieval beyond the probe duration.
This paper demonstrates that electric fields can systematically control atom-molecule Feshbach resonances in ultracold sodium-potassium mixtures, revealing distinct trimer bound states and providing a new method for manipulating polyatomic quantum matter.
This study compares quantum and semi-classical models of correlated triple ionization in neon under intense laser fields, revealing that the ECBB semi-classical model best reproduces quantum signatures on Dalitz plots and identifying a central "spot" as a direct ionization pathway whose width is determined solely by the tunnel-ionization time.
This study experimentally validates theoretical models linking control signal amplitude noise to qubit state fidelity in a 10x10 neutral atom array, demonstrating strong agreement between measured results and stochastic Schrödinger equation predictions to aid noise identification and optimal control in NISQ-era systems.
This paper proposes a one-dimensional non-Hermitian four-band lattice model to demonstrate that distinct knot topologies in momentum space correspond to specific magnitudes of many-body ground state entanglement entropy, thereby establishing a direct link between knot topology and physical entanglement properties through spectral winding numbers, analytic phase boundaries, and fidelity susceptibility.
This paper demonstrates that arranging a repumping transition for Sr atoms into a "green" magneto-optical trap significantly enhances atom capture and enables balanced two-color trapping, offering a promising scheme for achieving low temperatures and generating continuous atomic beams.
This paper introduces the concept of robustness to quantify state transfer protocols' tolerance to imperfect ancilla initialization, proving that this metric tightly bounds operator commutators to derive new, often improved, minimum runtimes for partially state-dependent quantum state transfer under power-law interactions.
This paper reports the first observation of interaction-induced, continuously tunable Fermi surface deformations in a deeply degenerate gas of microwave-shielded polar molecules, demonstrating a highly controllable platform for exploring strongly correlated dipolar quantum matter.