Letokhov-Chebotayev intracavity trapping spectroscopy of H2In the early days of laser spectroscopy Letokhov and Chebotayev proposed a scheme for measuring narrow spectral lines where the resolution is not restricted to Doppler effects because the molecules…Wim Ubachs, Frank M. J. Cozijn, Meissa L. Diouf et al.·Oct 8, 2025SaveLearn
Precision measurement of the 176Lu+ 3D1 microwave clock transitionsWe report precision measurement of the unperturbed 3D1 microwave transition frequencies in 176Lu+ to a fractional uncertainty of 4×10-14. We find the…M. D. K. Lee, Qi Zhao, Qin Qichen et al.·Oct 8, 2025SaveLearn
All-optical bubble trap for ultracold atoms in microgravityIn this paper, we present an all-optical method to produce shell-shaped traps for ultracold atoms in microgravity. Our scheme exploits optical double dressing of the ground state to create a short…Romain Veyron, Clément Métayer, Jean-Baptiste Gérent et al.·Oct 7, 2025SaveLearn
Multipole transition amplitudes and radiative decay rates in neutral cadmiumWe present a comprehensive study of the electronic transitions in neutral cadmium (Cd I) with a focus on forbidden transitions, motivated by recent advances in laser technology and the growing…P. J. Robert, S. Manzoor, M. Chiarotti et al.·Oct 6, 2025SaveLearn
Dual-frequency Doppler-free crossover resonance with suppressed magnetic-field sensitivity for compact optical frequency standardsWe report the observation and characterization of a high-contrast dual-frequency Doppler-free ground-state crossover resonance in the D1 line of 87Rb.The crossover appears at a two-photon detuning…D. S. Chuchelov, M. I. Vaskovskaya, E. A. Tsygankov et al.·Oct 4, 2025SaveLearn
QED vacuum polarization in the Coulomb field of a nucleus: a method of high-order calculationA calculation of the QED vacuum polarization potential in the Coulomb field of a pointlike nucleus was presented in an earlier publication by the author and his collaborators. Corrections up to order…Sergey Volkov·Oct 3, 2025SaveLearn
Fast surrogate modelling of EIT in atomic quantum systems using LSTM neural networksSimulations of optical quantum systems are essential for the development of quantum technologies. However, these simulations are often computationally intensive, especially when repeated evaluations…Isabel S. Burdon Hita, Óscar Iglesias-González, Gabriel M. Carral et al.·Oct 2, 2025SaveLearn
Nondestructive characterization of laser-cooled atoms using machine learningWe develop machine learning techniques for estimating physical properties of laser-cooled potassium-39 atoms in a magneto-optical trap using only the scattered light -- i.e., fluorescence -- that is…G. De Sousa, M. Doris, D. D'Amato et al.·Sep 30, 2025SaveLearn
Dimensional Control of the Coherence Time of Scattered Light in Cold Atom CloudsCold atomic clouds are promising platforms for generating correlated photons, but multiple scattering and associated Doppler broadening limit their temporal coherence. Here we demonstrate that cloud…Ana Cipris, Mateus a F Biscassi, J C C Capella et al.·Sep 30, 2025SaveLearn
Precision spectroscopy in Yb+ ionsWe report on our progress on multi-ion spectroscopy with Yb+ ions. We first characterized the spatial homogeneity of the magnetic- and the rf-field. Subsequently, to equalize the immense AC Stark…Jialiang Yu, Kai C. Grensemann, Chih-Han Yeh et al.·Sep 29, 2025SaveLearn
Non-destructive optical read-out and manipulation of circular Rydberg atomsAmong the thriving quantum computation and quantum simulation platforms based on arrays of Rydberg atoms, those using circular Rydberg atoms are particularly promising. These atoms uniquely combine…Yohann Machu, Andrés Durán-Hernández, Gautier Creutzer et al.·Sep 29, 2025SaveLearn
Excitation and ionization by electron impact in transition and super-transition arraysThis study investigates the ionization and excitation processes induced by electron impact between two configurations or superconfigurations. Rate coefficients are calculated for transition arrays or…Djamel Benredjem, Jean-Christophe Pain·Sep 28, 2025SaveLearn
Calculation of double differential cross sections (DDCS) for H(3S) ionization using Bethe and Lewis IntegralsCalculations have been made for the double differential cross section (DDCS) for the ionization of metastable hydrogen atoms in the 3S state by electron and positron impact at energies of 150 eV and…Fahadul Islam, Sunil Dhar·Sep 28, 2025SaveLearn
Quantum calculation of the collision-induced line-shape effects in antiprotonic helium and the new accurate ab initio pHe+-He potential energy surfaceWe present the first fully ab initio calculations of collision-induced broadening and shift of spectral lines in antiprotonic helium (pHe+) perturbed by atomic helium. To overcome…Hubert J. Jóźwiak, Dimitar Bakalov, Michał Przybytek et al.·Sep 28, 2025SaveLearn
Two-photon ionization of the K-shell of a heavy beryllium-like atomic ionWithin the framework of the second order of the non-relativistic quantum perturbation theory, the analytical structure and absolute values of the generalized cross-sections of the two-photon resonant…Hopersky A. N., Nadolinsky A. M., Novikov S. A. et al.·Sep 27, 2025SaveLearn
Delay in electronic vortex states created by multiphoton ionization with single elliptically polarized laser pulsesWe show experimentally and theoretically that vortex-shaped structures in the photoelectron momentum distribution can be observed for atoms interacting with a single intense elliptically polarized…Edward McManus, Phi-Hung Tran, Michael Davino et al.·Sep 26, 2025SaveLearn
A high-stability optical clock based on a continuously ground-state cooled Al+ ion without compromising its accuracySingle ion optical clocks have shown systematic frequency uncertainties below 10-18, but typically require more than one week of averaging to achieve a corresponding statistical uncertainty.…Fabian Dawel, Lennart Pelzer, Kai Dietze et al.·Sep 26, 2025SaveLearn
Microfabricated multi-axis cell for integrated atomic devicesMicrofabricated alkali vapor cells enable the miniaturization of atomic sensors, but require collective wafer-level integration of complex features. In many applications, including magnetometers,…L. Péroux, A. Dewilde, A. Mursa et al.·Sep 26, 2025SaveLearn
Sub-Doppler spectroscopy of the strontium intercombination line in a microfabricated vapor cellWe report a 100 kHz linewidth for the 1S0 to 3P1 intercombination line of 88Sr atoms at 689nm in a microfabricated 9x14 x4.4 mm3 vapor cell. This puts an upper bound on the residual gas pressure in…Yang Li, John Kitching, Matthew T. Hummon·Sep 24, 2025SaveLearn
Multielectron ionization of three-electron strongly driven Ne at high intensitiesWe extend a recently developed three-dimensional semiclassical model to study double and triple ionization of Ne driven by infrared laser pulses at various intensities. This model fully accounts for…Samuel James Praill, Georgios Petros Katsoulis, Agapi Emmanouilidou·Sep 24, 2025SaveLearn
Laser Excitation of Muonic 1S Hydrogen Hyperfine Transition: Effects of Multi-pass Cell InterferenceCalculating the laser-induced transition probability by using the fluence distribution that neglects interference effects (e.g., by employing ray-tracing methods) can lead to an overestimation of…M. Ferro, P. Amaro, L. Sustelo et al.·Sep 23, 2025SaveLearn
Investigating Roles of Triple Excitations for High-precision Determination of Clock Properties of Alkaline Earth Metal Singly Charged IonsHigh-accuracy calculations of electric dipole polarizabilities and quadrupole moments () of the clock states of the singly charged calcium (Ca+), strontium (Sr+) and barium (Ba+)…A. Chakraborty, Vaibhav Katyal, B. K. Sahoo·Sep 22, 2025SaveLearn
Accelerating Atomic Fine Structure Determination with Graph Reinforcement LearningAtomic data determined by analysis of observed atomic spectra are essential for plasma diagnostics. For each low-ionisation open d- and f-subshell atomic species, around 103 fine structure level…M. Ding, V. -A. Darvariu, A. N. Ryabtsev et al.·Sep 19, 2025SaveLearn
Near-infrared high resolution overtone spectroscopy of the hydronium ion H3O+: the 232+ and 232- bandsThis work presents the rovibrational spectra of the two strongest first overtone bands of the asymmetric stretching mode 3 (232+ and 232-) of the hydronium ion, H3O+.…Chiara Schleif, Hayley A. Bunn, Miguel Jiménez-Redondo et al.·Sep 19, 2025SaveLearn
Sensitivity Comparison of Rydberg Atom-Based Radio-Frequency Electric Field Detection: Ionization Current Versus Optical ReadoutWe investigate a technique for detecting radio-frequency (RF) electric fields in a Cesium (Cs) vapor cell at room temperature by collecting charge from ionized Rydberg atoms and compare its…Dangka Shylla, Rajavardhan Talashila, Alexandra Artusio-Glimpse et al.·Sep 18, 2025SaveLearn