Relativistic quintuple-zeta basis sets for the p blockRelativistic quintuple-zeta basis sets for the p elements are presented. The basis sets for the occupied spinors were optimized at the Dirac-Coulomb self-consistent field (SCF) level on the ground…Marten L. Reitsma, Eifion H. Prinsen, Johan D. Polet et al.·Feb 5, 2026SaveLearn
Extended Rydberg Lifetimes in a Cryogenic Atom ArrayWe report on the realization of a 133Cs optical tweezer array in a cryogenic blackbody radiation (BBR) environment. By enclosing the array within a 4K radiation shield, we measure long Rydberg…Junlan Jin, Yue Shi, Youssef Aziz Alaoui et al.·Feb 5, 2026SaveLearn
Radiation of relativistic electrons created in tunnel ionization of atomic gases by laser beams of extreme intensityWe consider tunnel ionization of atomic argon in a femtosecond laser pulse of intensity 1021-1022 W/cm2 aiming to investigate the relativistic dynamics and radiation of photoelectrons…N. V. Makarenko, S. V. Popruzhenko·Feb 4, 2026SaveLearn
Efficient Three-Dimensional Sub-Doppler Cooling of 40Ca+ in a Penning TrapWe demonstrate efficient sub-Doppler laser cooling of the three eigenmodes of a 40Ca+ ion confined in a compact Penning trap operating with a magnetic field of 0.91 T. Using the same set of…Brian J. McMahon, Brian C. Sawyer·Feb 3, 2026SaveLearn
Intrinsic atomic calibration of oscillating magnetic fields in ULF and VLF bandsWe present a method for absolute calibration of received radio-frequency in the ultra low frequency (ULF), and very low frequency (VLF) range. This is achieved with the use of a radio frequency…Zak Johnston, Paul F. Griffin, Erling Riis et al.·Feb 2, 2026SaveLearn
Theoretical investigation of transition data of astrophysical importance in neutral sulphurAccurate and comprehensive atomic data are essential for the modelling of stellar spectra. Uncertainties in the oscillator strengths of specific lines used for abundance analyses directly translate…W. Li, A. M. Amarsi, P. Jönsson·Feb 2, 2026SaveLearn
Spin-orbit-dependent lifetimes of long-range Rydberg moleculesLong-range Rydberg molecules (LRMs) form when a highly excited Rydberg electron scatters from ground-state atoms inside its orbit, creating oscillatory, long-range potentials. We present a combined…Michael Peper, Jakob Skrotzki, Martin Trautmann et al.·Feb 2, 2026SaveLearn
Positronium breakup versus hydrogen ionization in collisions with fast charged projectiles: a comparative studyWe perform a comparative study of the breakup of positronium and ionization of atomic hydrogen by projectile-nuclei in the weak perturbation collision regime, Zp e02/ v < c (v is the…B. Najjari, S. F. Zhang, X. Ma et al.·Feb 1, 2026SaveLearn
Verification and experimental validation of neutral atom beam source produced by L-PBFWe report validation tests of a calcium atomic-beam source fabricated via Laser Powder Bed Fusion (L-PBF). The surface quality and elemental composition of the printed component were quantitatively…Vineet Kumar, Niklas V. Lausti, Peter Kúš et al.·Jan 31, 2026SaveLearn
Wafer-Scale Micro-Knife Sealed Vacuum Cells for Quantum DevicesAdvanced integration technologies greatly enhance the prospects and reliability of practical quantum sensors, atomic clocks, and quantum information technologies. The performance and proliferation of…Megan Lauree Kelleher, Konrad Ziegler, Jeremy Robin et al.·Jan 30, 2026SaveLearn
Unambiguous Vector Magnetometry with Structured Light in Atomic VaporAbsorption profiles of vector light upon interaction with atomic vapor carries distinct signatures of external magnetic field vector. However, this signature becomes ambiguous for anti parallel…S. Ramakrishna, S. Fritzsche·Jan 30, 2026SaveLearn
Wichmann-Kroll Correction in Muonic Atoms and Hydrogen-Like Electronic Ions: a Comparative Study of Two MethodsWichmann-Kroll corrections are calculated in both hydrogen-like electronic ions and muonic systems (Z = \36--92\) using two independent methods. The Gaussian finite basis set approach, enhanced…Zoia A. Mandrykina, Zewen Sun, Natalia S. Oreshkina·Jan 30, 2026SaveLearn
Direct observation of the optical Magnus effect with a trapped ionWe directly observe and spatially map an optical analog of the Magnus effect, where intrinsic spin-orbit-like coupling of light generates a spin-dependent transverse displacement of the atom-light…Philip Leindecker, Louis P. H. Gallagher, Edgar Brucke et al.·Jan 30, 2026SaveLearn
Low energy elastic scattering of hydrogen, deuterium and tritium on helium isotopesMotivated by the needs of atomic tritium sources for neutrino mass experiments and Doppler-free two-photon 1S-2S spectroscopy in atomic deuterium and tritium, we present calculations of…B. J. P. Jones, A. Negi, A. Semakin·Jan 29, 2026SaveLearn
Coherent vibrational dynamics in molecular bond breaking: methyl radical umbrella mode probed by femtosecond x-ray spectroscopyWe report on the observation of coherent molecular vibrations launched by the breaking of a molecular bond. The methyl radical, which is produced by 267\,nm photodissociation of methyl…Christian A. Schröder, John H. Hack, Joshua L. Edwards et al.·Jan 29, 2026SaveLearn
Spectral properties of high-order harmonic radiation enhanced by XUV-driven electron-hole dynamicsWe analyze the spectral properties of high-order harmonic radiation with photon energies extending beyond the regular cutoff energy in standard high-order harmonic generation. The extension of the…R. Esteban Goetz, Anh-Thu Le·Jan 29, 2026SaveLearn
Statistics and systematics of electron EDM searches with BaFThe NL-eEDM experiment searches for a non-zero electric dipole moment of the electron de (eEDM) in the ground state of barium monofluoride (BaF). A beam of BaF from a supersonic expansion…A. Boeschoten, V. R. Marshall, T. B. Meijknecht et al.·Jan 29, 2026SaveLearn
Applicability of the Dirac-Fock method combined with Core Polarization in calculations of alkali atomsIn this work, we investigate the applicability of the core-polarization-corrected Dirac--Fock method, formulated within the framework of the local Dirac--Hartree--Fock (LDF) potential, for the…A. A. Bobylev, J. J. Lopez-Rodriguez, P. A. Kvasov et al.·Jan 29, 2026SaveLearn
Development of a Quantum Blackbody Thermometer toward Primary On-orbit ThermometryWe present a roadmap to a deployable, intrinsically calibrated thermometer with long-term accuracy of 30 mK, exceeding existing on-orbit resistance-based thermometers. Our quantum blackbody…Peter J. Beierle, Denis Tremblay, Noah Schlossberger et al.·Jan 28, 2026SaveLearn
Trapping and cooling mechanisms in blue-detuned magneto-optical traps of moleculesIn red-detuned magneto-optical traps (MOTs) of molecules, sub-Doppler heating competes with Doppler cooling, resulting in high temperature and low density. A solution is offered by the blue-detuned…Qinshu Lyu, M. R. Tarbutt·Jan 28, 2026SaveLearn
R-Matrix Theory for Electron-Ion Collisions in PlasmasElectron-atom collisions in warm dense plasmas are crucial for astrophysics and controlled fusion research, where calculating short-range scattering matrices under screening plasma potentials is…Chao Wu, Wen Hao Xia, Yong Wu et al.·Jan 27, 2026SaveLearn
Spectroscopy of 4He at 0.25 ppt Uncertainty and Improved Alpha-Helion Charge-Radius Difference DeterminationHigh-precision spectroscopy of simple atomic systems can be used to advance the theory of atomic energy levels but can also serve as a sensitive probe of nuclear charge radii. For this last purpose,…K. Steinebach, J. C. J. Koelemeij, H. L. Bethlem et al.·Jan 27, 2026SaveLearn
Broadband Heterodyne Microwave Detection using Rydberg Atoms with High SensitivityWe present a Rydberg atom-based microwave electric field sensor that achieves extended dynamic range and enhanced sensitivity across a broad bandwidth. By characterizing the Autler-Townes (AT)…Hsuan-Jui Su, Shao-Cheng Fang, Ting-An Li et al.·Jan 27, 2026SaveLearn
A comparison of Fraunhofer-type diffraction from an atomic single-slit and a molecular double-slitWe measured the Q-value and the scattering angle distributions for non-dissociative state selective single electron capture in collisions of 7.5 keV H+ and 15 keV H2+ with He. The experimental…Jibak Mukherjee, Kamal Kumar, Harpreet Singh et al.·Jan 25, 2026SaveLearn
A fast and accurate method for simulating Bragg atom interferometersAtom interferometers are used in a variety of applications, from measuring gravity and gravity gradients in the field to performing tests of fundamental physics in the lab. One method of increasing…Jack Roth, Andrew Christensen, Madeline Bernstein et al.·Jan 23, 2026SaveLearn