410 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 dual metastable-state encoding architecture for neutral-atom arrays that leverages distinct nuclear-spin and hyperfine-spin qubit subspaces to enable long-coherence storage, fast operations, and mid-circuit measurement without disturbing data qubits, thereby providing a scalable framework for fault-tolerant quantum error correction.
This paper introduces "quantum hodographs" as universal topological descriptors for non-stationary quantum dynamics, demonstrating that expectation value trajectories in systems like free electrons and anisotropic oscillators form robust knots and loops with winding numbers that can be experimentally reconstructed via optical modulation spectroscopy.
This paper systematically maps the four-dimensional parameter space of double microwave shielding to identify optimal operating regimes that maximize loss suppression and interaction tunability for polar molecules, ultimately identifying heavy, strongly dipolar species as the most promising candidates for future quantum simulation experiments.
Using explicitly correlated basis functions, this study calculates the Born-Oppenheimer potential curves for excited states of the hydrogen-antihydrogen system, demonstrating that these states support ro-vibrational levels near the dissociation threshold and must therefore be included in theoretical models of ground-state collisions.
This paper demonstrates that collective emission effects, such as resonance shifts and directional coherent emission, can be preserved in subwavelength arrays of solid-state silicon-vacancy centers despite severe inhomogeneous broadening by utilizing high-density ion implantation to create "superatoms" that achieve probabilistic frequency matching.
This paper demonstrates a record-breaking laser fractional frequency instability of and a 12 mHz linewidth using a 68 cm room-temperature optical reference cavity, proving that state-of-the-art spectral purity is achievable without cryogenic cooling.
This paper calculates comprehensive multi-level and multi-term collisional depolarization, polarization-transfer, and population-transfer rates for solar helium I lines resulting from isotropic collisions with neutral hydrogen, providing essential data to improve the modeling of solar spectropolarimetry.
This paper demonstrates many cycles of syndrome extraction in a toric quantum error-correcting code using neutral atom arrays, achieving indefinite coherent operation through mid-circuit qubit measurement and reloading while showing that larger code distances yield lower logical error rates.
This paper reports the implementation of a room-temperature thorium-229 optical nuclear clock embedded in a calcium fluoride crystal that achieves high stability through rapid laser feedback, enabling competitive constraints on ultralight dark matter models by surpassing previous limits on strong force and quark couplings.
This paper presents a Hessian-based calibration method that leverages the low-rank structure of quantum-control landscapes to efficiently optimize high-dimensional waveforms for neutral atom gates, experimentally demonstrating rapid convergence and high fidelity (0.99902) for a robust controlled-Z gate on 171Yb qubits.