Quantum Sensing Using Atomic Clocks for Nuclear and Particle PhysicsTechnologies for manipulating single atoms have advanced drastically in the past decades. Due to their excellent controllability of internal states, atoms serve as one of the ideal platforms as…Akio Kawasaki·Nov 29, 2024SaveLearn
One-loop electron self-energy with accelerated partial-wave expansion in Coulomb gaugeNumerical calculations of the electron self-energy without any expansion in the binding nuclear field are required in order to match the rapidly advancing precision of experimental spectroscopy. For…V. A. Yerokhin, Z. Harman, C. H. Keitel·Nov 28, 2024SaveLearn
Photon Angular Distribution in Two-Photon Electron Capture by H-Like UraniumWe present a comprehensive study of the angular distribution of photons emitted during the resonant two-photon electron capture by H-like uranium ions. Focusing on the energies of incident electrons,…K. N. Lyashchenko, O. Yu. Andreev, D. Yu·Nov 28, 2024SaveLearn
Laser cooling trapped-ion crystal modes beyond the Lamb-Dicke regimeLaser cooling methods for trapped ions are most commonly studied at low energies, i.e., in the Lamb-Dicke regime. However, ions in experiments are often excited to higher energies for which the…John P. Bartolotta, Brian Estey, Michael Foss-Feig et al.·Nov 27, 2024SaveLearn
Comb-referenced Doppler-free spectrometry of the 200Hg and 202Hg intercombination line at 254 nmWe report on precision spectroscopy of the 6s2 1S06s6p 3P1 intercombination line of mercury in the deep ultraviolet, by means of a frequency-comb referenced, wavelength-modulated,…Stefania Gravina, Naveed A. Chishti, Simona Di Bernardo et al.·Nov 26, 2024SaveLearn
Luminosity predictions for the first three ionisation stages of W, Pt and Au to probe potential sources of emission in kilonovaA large number of R-matrix calculations of electron impact excitation for heavy elements (Z > 70) have been performed in recent years for applications in fusion and astrophysics research. With the…M. McCann, L. P. Mulholland, Z. Xiong et al.·Nov 25, 2024SaveLearn
Two-photon cooling of calcium atomsWe demonstrate sub-Doppler cooling of calcium atoms using a two-photon transition from the 1S0 ground state to the upper 4s5s~1S0 state via the 1P1 intermediate state. We achieve…Wojciech Adamczyk, Silvan Koch, Claudia Politi et al.·Nov 25, 2024SaveLearn
Ro-vibrational quenching calculations of C2- in collision with H2The molecular anion C2- has been of interest in the last few years as a candidate for laser cooling due to its electronic structure and favourable branching ratios to the ground electronic and…Kousik Giri, Barry Mant, Franco A. Gianturco et al.·Nov 25, 2024SaveLearn
Theory of internal conversion of the thorium-229 nuclear isomer in solid-state hostsLaser excitation of thorium-229 nuclei in doped wide bandgap crystals has been demonstrated recently, opening the possibility of developing ultrastable solid-state clocks and sensitive searches for…H. W. T. Morgan, H. B. Tran Tan, R. Elwell et al.·Nov 23, 2024SaveLearn
Spin structure of diatomic van der Waals molecules of alkali atomsWe theoretically investigate the spin structure of weakly bound diatomic van der Waals molecules formed by two identical bosonic alkali atoms. Our studies were performed using known Born-Oppenheimer…Jing-Lun Li, Paul S. Julienne, Johannes Hecker Denschlag et al.·Nov 22, 2024SaveLearn
Experimental Observation of Non-Exponential Auger-Meitner Decay of Inner-Shell-Excited COElectronically excited atoms or molecules may deexcite by emission of a secondary electron through an Auger-Meitner decay. This deexcitation process is typically considered to be exponential in time.…M. Weller, G. Kastirke, J. Rist et al.·Nov 21, 2024SaveLearn
A distorted-wave approach to the elastic scattering of twisted electronsThe elastic scattering of spinless vortex electrons on realistic target atoms has been investigated. In particular, expressions are derived in different approximations for the elastic…A. L. Harris, S. Fritzsche·Nov 21, 2024SaveLearn
Quantum States Imaging of Magnetic Field Contours based on Autler-Townes Effect in Yb AtomsAn inter-combination transition in Yb enables a novel approach for rapidly imaging magnetic field variations with excellent spatial and temporal resolution and accuracy. This quantum imaging…Tanaporn Na Narong, Hongquan Li, Joshua Tong et al.·Nov 21, 2024SaveLearn
Nonlinear dynamics in an artificial feedback spin maserSpin masers with optical detection and artificial feedback are widely used in fundamental and practical applications. However, a full picture of the maser dynamics is still absent. By solving the…Mingjun Feng, Lan Wu, Guobin Liu·Nov 21, 2024SaveLearn
Compact Blackbody Radiation Atomic Sensor: Measuring Temperature using Optically Excited Atoms in Vapor CellsWe demonstrate a blackbody radiation thermometer based on optically excited rubidium atoms in a vapor cell. The temperature measurement is fast, with statistical uncertainty as low as 0.1% in one…David S. La Mantia, Mingxin Lei, Nikunjkumar Prajapati et al.·Nov 20, 2024SaveLearn
Making molecules by mergoassociation: the role of center-of-mass motionIn mergoassociation, two atoms in separate optical traps are combined to form a molecule when the traps are merged. Previous theoretical treatments have considered only the relative motion of the…Robert C. Bird, Jeremy M. Hutson·Nov 20, 2024SaveLearn
Revisiting the hyperfine interval for the 2s2p 3\!PJ state in 9BeUsing relativistic multiconfiguration Dirac-Hartree-Fock method, we calculate the hyperfine-structure properties of the 2s2p 3\!PJ state in 9Be. The hyperfine-structure properties…Yu-Shan Zhang, Wei Dang, Kai Wang et al.·Nov 20, 2024SaveLearn
The d-electron contribution to the stopping power of transition metalsWe present a new non-perturbative model to describe the stopping power by ionization of the d-electrons of transition metals. These metals are characterized by the filling of the d-subshell and the…J. P. Peralta, A. M. P. Mendez, D. M. Mitnik et al.·Nov 19, 2024SaveLearn
High-fidelity entanglement of metastable trapped-ion qubits with integrated erasure conversionToday's most advanced ion trap quantum computers have significant overhead due to the need for dual-species operation. Looking ahead, logical qubit register sizes will be limited by the encoding rate…A. Quinn, G. J. Gregory, I. D. Moore et al.·Nov 19, 2024SaveLearn
Two-loop electron self-energy for low nuclear chargesCalculations of the two-loop electron self-energy for the 1S Lamb shift are reported, performed to all orders in the nuclear binding strength parameter Zα (where Z is the nuclear charge…V. A. Yerokhin, Z. Harman, C. H. Keitel·Nov 19, 2024SaveLearn
Highly stable modular-assembled laser system for a dual-atom-interferometer gyroscopeOperating atom-interferometer gyroscopes outside a laboratory environment is challenging primarily owing to the instability of laser systems. To enhance the thermal stability of free-space laser…Chuan Sun, Si-Bin Lu, Min Jiang et al.·Nov 19, 2024SaveLearn
Pulsed Dual-axis Alkali-metal-noble-gas ComagnetometerAlkali-metal-noble-gas comagnetometers are precision probes well-suited for tests of fundamental physics and inertial rotation sensing, combining high sensitivity of the spin-exchange-relaxation free…Jingyao Wang, Junyi Lee, Hudson Loughlin et al.·Nov 18, 2024SaveLearn
Slow molecular beams from a cryogenic buffer gas sourceWe study the properties of a cryogenic buffer gas source that uses a low temperature two-stage buffer gas cell to produce very slow beams of ytterbium monofluoride molecules. The molecules are…A. D. White, S. Popa, J. Mellado-Munoz et al.·Nov 17, 2024SaveLearn
Radio-frequency induced Autler-Townes Effect for single- and double-photon magnetic-dipole transitions in the Cesium ground stateWe have observed the Autler-Townes effect in single- and suspected double-photon magnetic-dipole transitions in the Cesium ground-state magnetic-sublevel manifold. Experiments were performed in a…Arturs Mozers, Linda Serzane-Sadovska, Florian Gahbauer et al.·Nov 15, 2024SaveLearn
Trajectory effects on charge exchange and energy loss in collisions of H+, He2+, Li3+, and Be4+ ions with atomic hydrogenThe charge exchange and energy loss processes provide insights into fundamental processes across physical, chemical, and engineered systems. While this field has been thoroughly investigated, a clear…Miranda Nichols, D. Hanstorp, R. Cabrera-Trujillo·Nov 15, 2024SaveLearn