Relativistic equation-of-motion coupled-cluster theory analysis of black-body radiation shift in the clock transition of Zn IWe have employed equation-of-motion coupled-cluster (EOM-CC) method in the four-component relativistic theory framework to understand roles of electron correlation effects in the ab initio…Somesh Chamoli, Anmol Mishra, Richa Sharma Kesarkar et al.·Dec 28, 2023SaveLearn
Relativistic ab initio study on the spectroscopic and radiative properties of the lowest states and modeling of the optical cycles for the LiFr moleculeThe LiFr diatomic represents a promising candidate for indirect laser cooling that has not yet been investigated not theoretically or experimentally. The potential energy curves of the ground and…Maksim Shundalau, Patrizia Lamberti·Dec 27, 2023SaveLearn
Excitations of N2 and O2 molecules due to helium ion impact and a polarization effectWe present an experimental study of the dissociative excitation in the collision of helium ions with nitrogen and oxygen molecules for collision energy of 0.7-10 keV. Absolute emission cross…M. Gochitashvili, R. Lomsadze, R. Ya. Kezerashvili et al.·Dec 27, 2023SaveLearn
Electron Confinement study in a double quantum dot by means of Shannon Entropy InformationIn this work, we use the Shannon informational entropies to study an electron confined in a double quantum dot; we mean the entropy in the space of positions, Sr, in the space of momentum, Sp,…Wallas S. Nascimento, Angelo M. Maniero, Frederico V. Prudente et al.·Dec 26, 2023SaveLearn
A two-state Kalman estimator for atomic gravimetryWe present a two-state Kalman estimator of gravity acceleration and evaluate its performance by numerical simulations and post-measurement demonstration with real-world atomic gravimetry. We show…Bo-Nan Jiang·Dec 25, 2023SaveLearn
Cross-calibration of atomic sensors for pressure metrologyAtomic sensors have shown great promise for density and pressure metrology in the high, ultra-high, and extremely-high vacuum regimes. Specifically, the density of background gas particles in vacuum…Erik Frieling, Riley A. Stewart, James L. Booth et al.·Dec 24, 2023SaveLearn
Non-Hermitian gravitational effects on Bose-Einstein condensateWe investigated the impact of Non-Hermitian gravitational potentials on the spatial distribution of Bose-Einstein condensate (BEC) wave functions. Through numerical solutions of the Gross-Pitaevskii…Tie-Fu Zhang, Chengxi Li, Yitong Pei et al.·Dec 24, 2023SaveLearn
Calculate electronic excited states using neural networks with effective core potentialThe essence of atomic structure theory, quantum chemistry, and computational materials science is solving the multi-electron stationary Schr\"odinger equation. The Quantum Monte Carlo-based neural…JinDe Liu, Chenglong Qin, Xi He et al.·Dec 23, 2023SaveLearn
Convolutional neural network for retrieval of the time-dependent bond length in a molecule from photoelectron momentum distributionsWe apply deep learning for retrieval of the time-dependent bond length in the dissociating two-dimensional H2+ molecule using photoelectron momentum distributions. We consider a pump-probe…N. I. Shvetsov-Shilovski, M. Lein·Dec 22, 2023SaveLearn
Imagining density distribution of molecular orbitals in IR+XUV co-rotating circular laser fields by frequency-domain theoryWe have investigated the angle-resolved ATI spectrum of oriented molecules in the IR+XUV co-rotating circular laser fields. According to the different roles of IR and XUV laser in the ionization…Yu-Hong Li, Facheng Jin, Yujun Yang et al.·Dec 21, 2023SaveLearn
Review and experimental benchmarking of machine learning algorithms for efficient optimization of cold atom experimentsThe generation of cold atom clouds is a complex process which involves the optimization of noisy data in high dimensional parameter spaces. Optimization can be challenging both in and especially…Oliver Anton, Victoria A. Henderson, Elisa Da Ros et al.·Dec 20, 2023SaveLearn
Quantum description of atomic diffraction by material nanostructuresWe present a theoretical model of matter-wave diffraction through a material nanostructure. This model is based on the numerical solution of the time-dependent Schr\"odinger equation, which goes…Quentin Bouton, G Dutier, Nathalie Fabre et al.·Dec 20, 2023SaveLearn
Cavity-enhanced detection of spin polarization in a microfabricated atomic vapor cellWe demonstrate continuous Pound-Drever-Hall (PDH) nondestructive monitoring of the electron spin polarization of an atomic vapor in a microfabricated vapor cell within an optical resonator. The…María Hernández Ruiz, Yintao Ma, Hana Medhat et al.·Dec 19, 2023SaveLearn
Circularly polarized RABBIT applied to a Rabi-cycling atomWe utilize the reconstruction of attosecond beating by interference of two-photon transitions (RABBIT) technique to study the phase of a Rabi-cycling atom using circularly polarized extreme…Yijie Liao, Edvin Olofsson, Jan Marcus Dahlström et al.·Dec 19, 2023SaveLearn
Investigation of two-photon electron capture by H-like uraniumWe present a study of two-photon electron capture by H-like uranium ions. The energy of the incident electron was chosen to be in the region with the most significant contribution of the dielectric…Konstantin N. Lyashchenko, Oleg Yu. Andreev, Deyang Yu·Dec 19, 2023SaveLearn
A continuous cold rubidium atomic beam with enhanced flux and tunable velocityWe present a cold atomic beam source based on a two-dimensional (2D)+ magneto-optical trap (MOT), capable of generating a continuous cold beam of 87Rb atoms with a flux up to 4.3*109 atoms/s, a mean…Shengzhe Wang, Zhixin Meng, and Peiqiang Yan et al.·Dec 19, 2023SaveLearn
CP-violation sensitivity of closed-shell radium-containing polyatomic molecular ionsClosed-shell atoms and molecules such as Hg or TlF provide some of the best low-energy tests of hadronic CP-violation which is considered to be a necessary ingredient to explain the…Konstantin Gaul, Nicholas R. Hutzler, Phelan Yu et al.·Dec 18, 2023SaveLearn
3D surface profilometry using neutral helium atomsThree-dimensional mapping of surface structures is important in a wide range of biological, technological, healthcare and research applications, including taxonomy, microfluidics and fabrication.…Aleksandar Radic, Sam M. Lambrick, Nick A. von Jeinsen et al.·Dec 18, 2023SaveLearn
Probing atoms and molecules close to macroscopic bodiesIn this habilitation thesis, I briefly present my work at Imperial College London on trapping atomic clouds in micro-pyramids fabricated on silicon chips, which led to the fabrication of an on-chip…Athanasios Laliotis·Dec 17, 2023SaveLearn
Spectroscopy of the 5s5p 3 P0 → 5s5d 3 D1 transition of strontium using laser cooled atomsThis article presents spectroscopy results of the 5s5p\;3P0 → 5s5d\;3D1 transition in all isotopes of laser cooled Sr atoms and the utility of this transition for repumping…Kushal Patel, Palki Gakkhar, Korak Biswas et al.·Dec 16, 2023SaveLearn
Large-scale, Multi-pass, Two-chamber RF Atomic MagnetometerWe describe one of the largest radio-frequency RF atomic magnetometers presently operating. A total atomic volume of 128 cm3, with correspondingly large number of 87Rb atoms, can…D. J. Heilman, K. L. Sauer, D. W. Prescott et al.·Dec 15, 2023SaveLearn
Reactive collisions between electrons and BeH+ above dissociation thresholdOur previous studies of dissociative recombination, and vibrational excitation/de-excitation of the BeH+ ion, based on the multichannel quantum defect theory, are extended to collision energies…E. Djuissi, J. Boffelli, R. Hassaine et al.·Dec 15, 2023SaveLearn
Two-electron interference in two-photon attosecond double ionization of neonThe pump-probe experiments enabled by X-ray free-electron lasers (XFEL) will allow us to directly observe correlated electronic motion with attosecond time resolution by detecting photoelectron pairs…Siddhartha Chattopadhyay, Carlos Marante, Barry I. Schneider et al.·Dec 15, 2023SaveLearn
Estimating the D-line Energy Splitting of Alkali Metals Using a Modified Perturbation MethodWe report here on how a known method from standard perturbation theory for estimating the energy of the D-line splitting in hydrogen can be modified to effectively approximate this quantity for all…E. Holt Stewart, Douglas A. Barlow·Dec 13, 2023SaveLearn
Basis set calculations of heavy atomsMost modern calculations of many-electron atoms use basis sets of atomic orbitals. An accurate account for the electronic correlations in heavy atoms is very difficult computational problem and…M. G. Kozlov, Yu. A. Demidov, M. Y. Kaygorodov et al.·Dec 12, 2023SaveLearn