Towards metrology with highly charged isomeric ions from antiproton annihilationWe describe how the annihilation of antiprotons can be utilized to generate highly charged isomeric ions in an ion-trap setup. We identify optical transitions in the hyperfine splitting of…Sara Alfaro, Lorenz Panzl, Jakub Zieliński et al.·Feb 18, 2025SaveLearn
Cavity-enhanced spectroscopy in the deep cryogenic regime -- new hydrogen technologies for quantum sensingSpectrometers based on high-finesse optical cavities have proven to be powerful tools for applied and fundamental studies. Extending this technology to the deep cryogenic regime is beneficial in many…Kamil Stankiewicz, Marcin Makowski, Michał Słowiński et al.·Feb 18, 2025SaveLearn
Many-body theory and Gaussian-basis implementation of positron annihilation γ-ray spectra on polyatomic moleculesDoppler-broadened γ-ray spectra for positron annihilation on molecules are calculated using many-body theory. By employing Gaussian bases for the electron and positron wavefunctions, a…S. K. Gregg, J. P. Cassidy, A. R. Swann et al.·Feb 17, 2025SaveLearn
Many-body and QED effects in electron-atom inelastic scattering in EELSThe elemental composition and electronic structure of materials analyzed by electron energy loss spectroscopy (EELS) are probed by the inner-shell ionization of atoms. This is a localized process…Ioannis Iatrakis, Valerii Brudanin·Feb 17, 2025SaveLearn
Reduction of Magnetic-Field-Induced Shift in Quantum Frequency Standards Based on Coherent Population TrappingWe investigate the magnetic-field-induced frequency shift (MFS) of the clock "0-0" transition in the microwave quantum frequency standard (atomic clock) based on coherent population trapping (CPT) in…V. I. Vishnyakov, D. V. Brazhnikov, M. N. Skvortsov·Feb 17, 2025SaveLearn
A Radio-Frequency Emitter Design for the Low-Frequency Regime in Atomic ExperimentsRadio-frequency (RF) control is a key technique in cold atom experiments. We present a compact and efficient RF circuit based on a capacitive transformer network, where a low-frequency coil operating…Yudong Wei, Zhongshu Hu, Yajing Guo et al.·Feb 17, 2025SaveLearn
Triaxial Alignment Magnetometer Utilizing Free-Spin Precession in the Geomagnetic RangeIn this paper, we present a triaxial alignment magnetometer based on free-spin precession deployed in the geomagnetic range. Existing vector measurement methods often require complex optical setups,…Ge Jin, Tao Shi, Sheng Zou·Feb 17, 2025SaveLearn
Locally-sealed microfabricated vapor cells filled from an ex situ Cs sourceMicrofabricated alkali vapor cells are key to enable miniature devices such as atomic clocks and optically pumped magnetometers with reduced size, weight and power. Yet, more versatile fabrication…L. Péroux, A. Dewilde, R. Chutani et al.·Feb 15, 2025SaveLearn
Ultracold long-range van der Waals Rydberg trimerRydberg molecules, Rydberg-atom or Rydberg-molecule, are an essential ingredient of cold molecular sciences. However, due to the richness of Rydberg-neutral interactions, new kinds of Rydberg…Mateo Londoño, Vanessa C. Olaya-Agudelo, Felipe Herrera et al.·Feb 14, 2025SaveLearn
Ab initio Calculations of Electric Dipole Polarizabilities in the Li, Na and K AtomsWe carry out first-principle calculations of scalar and tensor components of the static electric dipole polarizabilities of six low-lying states of lithium (Li), sodium (Na) and potassium (K) alkali…A. Chakraborty, B. K. Sahoo·Feb 14, 2025SaveLearn
Absolute frequency measurement of a Lu+ (3 D1) optical frequency standard via link to international atomic timeWe report on an absolute frequency measurement of the Lu+\,(3 D1) standard frequency which is defined as the hyperfine-average of 1 S0 to 3 D1 optical clock…Zhao Zhang, Qi Zhao, Qin Qichen et al.·Feb 14, 2025SaveLearn
Effects of finite trapping on the decay, recoil, and decoherence of dark states of quantum emitter arraysThe collective interaction of electronic excitations with the electromagnetic field in atomic arrays can lead to reduced decay rates, forming subradiant states with applications in quantum…M. Eltohfa, F. Robicheaux·Feb 14, 2025SaveLearn
Determining angle of arrival of radio frequency fields using subwavelength, amplitude-only measurements of standing waves in a Rydberg atom sensorDeep subwavelength RF imaging with atomic Rydberg sensors has overcome fundamental limitations of traditional antennas and enabled ultra-wideband detection of omni-directional time varying fields all…Rajavardhan Talashila, William J. Watterson, Benjamin L. Moser et al.·Feb 14, 2025SaveLearn
Recoil corrections with finite nuclear size in hydrogenic systemsFormulas for the combined nuclear-recoil and finite-nuclear-size effects of order (Z\,α)5 and (Z\,α)6 are derived without any expansion in the nuclear charge radius rC, making them…Krzysztof Pachucki, Vojtěch Patkóš, Vladimir A. Yerokhin·Feb 13, 2025SaveLearn
Continuous rainbow RABBITT investigation of resonant states in He and H2We employ Reconstruction of Attosecond Beating By Interference of Two-photon Transitions with an advanced energy resolution (rainbow RABBITT) to resolve under-threshold discrete excitations and…Vladislav Serov, Anatoli Kheifets·Feb 12, 2025SaveLearn
High-resolution rapid-scanning Fourier-transform spectroscopy of ultracold atomsFemtosecond interferometry combined with acousto-optical phase modulation is an effective approach to implement various types of coherent nonlinear and multidimensional spectroscopy schemes. The high…Friedemann Landmesser, Nicolai Gölz, Ulrich Bangert et al.·Feb 12, 2025SaveLearn
Extending frequency metrology to increasingly complex molecules: SI-traceable sub-Doppler mid-IR spectroscopy of trioxaneBringing increasingly complex polyatomic molecules within reach of precision measurement experiments offers fascinating and far-reaching prospects ranging from Earth sciences and astrophysics, to…Dang Bao An Tran, Mathieu Manceau, Olivier Lopez et al.·Feb 12, 2025SaveLearn
Robust high-temperature atomic beam source with a microcapillary arrayWe present a new design for a directed high-flux high-temperature atomic vapor source for use in atomic physics experiments conducted under vacuum. An externally heated nozzle made of an array of…Peter Dotti, Xiao Chai, Jeremy L. Tanlimco et al.·Feb 11, 2025SaveLearn
Super-resolution optical trapping of multiple cold atomsArrays of optical tweezers form the backbone of neutral atoms analog and digital quantum processors. However, the inter-trap distance remains generally much larger than the size of the tweezers to…Kelvin Lim, Vincent Mancois, Haijun Wu et al.·Feb 11, 2025SaveLearn
Wavelength modulation laser spectroscopy of N2O at 17 μmUsing a mid-infrared quantum cascade laser and wavelength modulation absorption spectroscopy, we measure the frequencies of ro-vibrational transitions of N2O in the 17 μm region with…Y. Wang, J. Rodewald, O. Lopez et al.·Feb 11, 2025SaveLearn
Imaging of induced surface charge distribution effects in glass vapor cells used for Rydberg atom-based sensorsWe demonstrate the imaging of localized surface electric (E) field effects on the atomic spectrum in a vapor cell used in Rydberg atom-based sensors. These surface E-fields can result from an induced…Link Patrick, Noah Schlossberger, Daniel F. Hammerland et al.·Feb 10, 2025SaveLearn
Formation of ultracold triatomic molecules by electric microwave associationA theoretical model is proposed for the formation of ultracold ground-state triatomic molecules in weakly bound energy levels. The process is driven by the electric component of a microwave field,…Baraa Shammout, Leon Karpa, Silke Ospelkaus et al.·Feb 10, 2025SaveLearn
A Continuous Pump-Probe Experiment to Observe Zeeman Wave Packet DynamicsIn this work, we study the coherent dynamics of an atomic Zeeman wave packet using a continuous pump--probe scheme. A polarized wave packet is generated via few-photon excitation by a femtosecond…Kevin L. Romans, Kyle Foster, Shruti Majumdar et al.·Feb 10, 2025SaveLearn
Application of General-order Relativistic Coupled-cluster Theory to Estimate Electric-field Response Clock Properties of Ca+ and Yb+Accurate calculations of electric dipole polarizabilities (αd), quadrupole moments (), and quadrupole polarizabilities (αq) for the clock states of the singly charged calcium…YanMei Yu, B. K. Sahoo·Feb 10, 2025SaveLearn
Towards a Universal Foundation Model for Protein Dynamics: A Multi-Chain Tree-Structured Framework with Transformer PropagatorsSimulating large-scale protein dynamics using traditional all-atom molecular dynamics (MD) remains computationally prohibitive. We present a unified, universal framework for coarse-grained molecular…Jinzhen Zhu·Feb 9, 2025SaveLearn