Atomic electronic structure calculations with Hermite interpolating polynomialsWe have recently described the implementation of atomic electronic structure calculations within the finite element method with numerical radial basis functions of the form…Susi Lehtola·Feb 1, 2023SaveLearn
Collective excitations of Bose-Einstein Condensate in a Rydberg AtomIn this work, we investigated a Bose-Einstein condensate (BEC) inside a Rydberg atom. We first observed the density profile of the system using the Gross-Pitaevskii equation, and then we used the…Avra Banerjee, Dwipesh Majumder·Feb 1, 2023SaveLearn
Extended MCDHF calculations of energy levels and transition data for N IAccurate and extensive atomic data are essential for spectroscopic analyses of stellar atmospheres and other astronomical objects. We present energy levels, lifetimes, and transition probabilities…Meichun Li, Wenxian Li, P. Jönsson et al.·Feb 1, 2023SaveLearn
Few-photon single ionization of cold rubidium in the over-the-barrier regimePhotoionization of the rubidium (Rb) atoms cooled in a magneto-optical trap, characterized by the coexistence of the ground 5S1/2 and the excited 5P3/2 states, is investigated…Huanyu Ma, Xincheng Wang, Linxuan Zhang et al.·Jan 31, 2023SaveLearn
Optical Telecommunications-Band Clock based on Neutral Titanium AtomsWe propose an optical clock based on narrow, spin-forbidden M1 and E2 transitions in laser-cooled neutral titanium. These transitions exhibit much smaller black body radiation shifts than those in…Scott Eustice, Dmytro Filin, Jackson Schrott et al.·Jan 31, 2023SaveLearn
Probing Gravity for one Minute with an Optical-Lattice Atom InterferometerWe have realized an atom interferometer that probes gravitational potentials by holding, rather than dropping, atoms. Up to one minute of coherence times are realized by suspending the spatially…C. D. Panda, M. Tao, J. Eggelhof et al.·Jan 30, 2023SaveLearn
Adaptable platform for trapped cold electrons, hydrogen and lithium anions and cationsCold cations, electrons and anions are ubiquitous in space, participate in star formation chemistry and are relevant to studies on the origin of molecular biology homochirality. We report on a system…Levi O. A. Azevedo, Rodolfo J. S. Costa, Wania Wolff et al.·Jan 30, 2023SaveLearn
Efficient cooling of high-angular-momentum atomsWe propose a highly efficient and fast method of translational cooling for high-angular-momentum atoms. Optical pumping and stimulated transitions, combined with magnetic forces, can be used to…Logan E. Hillberry, Dmitry Budker, Simon M. Rochester et al.·Jan 30, 2023SaveLearn
Non-adiabatic interaction effects in the spectra of ultralong-range Rydberg moleculesUltralong-range Rydberg molecules (ULRM) are highly imbalanced bound systems formed via the low-energy scattering of a Rydberg electron with a ground-state atom. We investigate for 23Na the…Rohan Srikumar, Frederic Hummel, Peter Schmelcher·Jan 30, 2023SaveLearn
Update of Muonium 1S-2S transition frequencyWe present an updated value of the Muonium 1S-2S transition frequency, highlighting contributions from different QED corrections as well as the large uncertainty in the Dirac contribution, stemming…Irene Cortinovis, Ben Ohayon, Lucas de Sousa Borges et al.·Jan 30, 2023SaveLearn
Thermal bistability in laser-cooled trapped ionsThe non-linear dynamics of large ion clouds (N ≥ 256 ions) trapped in radio-frequency traps and coupled to laser-cooling give rise to a bistable behaviour of the temperature. Numerical…Adrien Poindron, Jofre Pedregosa-Gutierrez, Caroline Champenois·Jan 30, 2023SaveLearn
GRASIAN: Towards the first demonstration of gravitational quantum states of atoms with a cryogenic hydrogen beamAt very low energies, a light neutral particle above a horizontal surface can experience quantum reflection. The quantum reflection holds the particle against gravity and leads to gravitational…Carina Killian, Zakary Burkley, Philipp Blumer et al.·Jan 30, 2023SaveLearn
Dynamics of a buffer-gas-loaded, deep optical trap for moleculesWe describe an approach to optically trapping small, chemically stable molecules at cryogenic temperatures by buffer-gas loading a deep optical dipole trap. The ~10 K trap depth will be produced by a…Ashwin Singh, Lothar Maisenbacher, Ziguang Lin et al.·Jan 30, 2023SaveLearn
On the status of channeling radiation and laser based radiation sourcesA unified description of channeling radiation (CR) in oriented crystals (OC) and radiation in the field of an intense plane wave (laser radiation sources - LRS) is proposed in terms of two…M. Kh. Khokonov·Jan 29, 2023SaveLearn
Two-Color Attosecond ChronoscopeWe study ionization of atoms in strong orthogonal two-color (ω,2ω) (OTC) laser fields numerically and analytically. The calculated photoelectron momentum distribution shows two typical…J. N. Wu, J. Y. Che, F. B. Zhang et al.·Jan 29, 2023SaveLearn
Ab initio potential energy curves, scattering lengths, and rovibrational levels of the He2+ molecular ion in excited electronic statesWe calculate accurate potential energy curves for a ground-state He+ ion interacting with a He atom in the lowest-energy metastable 3\!S electronic state. We employ the full configuration…Jacek Gȩbala, Michał Przybytek, Marcin Gronowski et al.·Jan 26, 2023SaveLearn
Emulating an Atomic Gyroscope with Multiple AccelerometersThe main advantage of an atomic accelerometer when compared to a classical accelerometer is negligible bias drift, allowing for stable long-term measurements, which opens the potential application in…Nathan Shettell, Rainer Dumke·Jan 26, 2023SaveLearn
King-plot analysis of isotope shifts in simple diatomic moleculesWe demonstrate that the isotope shift in isotopomers of diatomic molecules, where the nucleus of one of its constituent atoms is replaced by another isotope, can be expressed as the sum of a field…Michail Athanasakis-Kaklamanakis, Shane G. Wilkins, Alexander A. Breier et al.·Jan 26, 2023SaveLearn
Hybrid Trapping of 87Rb Atoms and Yb+ Ions in a Chip-Based Experimental SetupHybrid quantum systems that unite laser-cooled trapped ions and ultracold quantum gases in a single experimental setup have opened a rapidly advancing field of study, including Quantum chemistry,…Abasalt Bahrami, Matthias Müller, Ferdinand Schmidt-Kaler·Jan 25, 2023SaveLearn
Bright continuously-tunable VUV source for ultrafast spectroscopyUltrafast electron dynamics drive phenomena such as photochemical reactions, catalysis, and light harvesting. To capture such dynamics in real-time, femtosecond to attosecond light sources are…Lucie Jurkovičová, Ltaief Ben Ltaief, Andreas Hult Roos et al.·Jan 25, 2023SaveLearn
Ultra-stable and versatile high-energy resolution setup for attosecond photoelectron spectroscopyAttosecond photoelectron spectroscopy is often performed with interferometric experimental setups that require outstanding stability. We demonstrate and characterize in detail an actively stabilized,…Sizuo Luo, Robin Weissenbilder, Hugo Laurell et al.·Jan 21, 2023SaveLearn
Quantum Control of Trapped Polyatomic Molecules for eEDM SearchesUltracold polyatomic molecules are promising candidates for experiments in quantum science, quantum sensing, ultracold chemistry, and precision measurements of physics beyond the Standard Model. A…Loïc Anderegg, Nathaniel B. Vilas, Christian Hallas et al.·Jan 20, 2023SaveLearn
A Multi-Pass Optically Pumped Rubidium Atomic Magnetometer with Free Induction DecayA free-induction-decay (FID) type optically-pumped rubidium atomic magnetometer driven by a radio-frequency (RF) magnetic field is presented in this paper. Influences of parameters, such as the…Lulu Zhang, Yongbiao Yang, Ni Zhao et al.·Jan 20, 2023SaveLearn
Signatures of Non-universal Quantum Dynamics of Ultracold Chemical Reactions of Polar Alkali-dimer Molecules with Alkali-metal Atoms: Li(2S) +NaLi(a3+) Na(2S) + Li2(a3u+)Ultracold chemical reactions of weakly bound triplet-state alkali-metal dimer molecules have recently attracted much experimental interest. We perform rigorous quantum scattering calculations with a…Masato Morita, Brian K. Kendrick, Jacek Kłos et al.·Jan 19, 2023SaveLearn
Leading-order QED effects in the ground electronic state of molecular hydrogenWe perform highly accurate calculations of the leading order QED correction to the ground electronic state of molecular hydrogen. Numerical results are obtained for a grid of the internuclear…Michał Siłkowski, Jacek Komasa, Mariusz Puchalski et al.·Jan 18, 2023SaveLearn