A delay-programmable two-color femtosecond source for multiphoton ionization studies based on chirped-seed NOPAWe demonstrate a delay-programmable two-color femtosecond source based on a chirped-seed noncollinear optical parametric amplifier. Introducing controlled dispersion into the seed enables spectral…Kyle Foster, Shruti Majumdar, Mason Toombs et al.·May 4, 2026SaveLearn
Isotopic effect on collisional widths and shifts of Hg clock transition induced by cold Rb atomsWe study the isotopic dependence of collisional widths and shifts of the Hg clock transition 1S0-3P0 perturbed by the Rb atoms in the temperature range from 1 nK to 1 K. For this purpose,…Renu Bala, Adam Linek, Marcin Witkowski et al.·May 3, 2026SaveLearn
Separation of even-even from even-odd isotopes using ultrafast lasersWe propose a laser isotope separation mechanism in which selectivity arises from nuclear spin rather than isotope shifts, enabling the use of broadband ultrafast lasers. A Ramsey pulse sequence is…Jacob Levitt·May 1, 2026SaveLearn
Spatially Resolved Temperature Measurement Using Rydberg Doppler Broadening ThermometryWe demonstrate a technique for spatially resolved temperature measurement utilizing Rydberg Doppler broadening thermometry. This method employs two focused laser beams arranged perpendicularly to…K. N. Trivedi, M. Carminati, Èlia Solé Cardona et al.·Apr 30, 2026SaveLearn
International Optical Clock Comparison Using the European Optical Fiber NetworkOptical clocks have achieved remarkable estimated fractional frequency uncertainties reaching the 10-18 level and below, enabling applications in fundamental physics, general relativity, and…Marco Pizzocaro, Clara Zyskind, Anne Amy-Klein et al.·Apr 30, 2026SaveLearn
Long-range states in collisions of ultracold moleculesWe use coupled-channel calculations to explore the nature of near-threshold bound states in a simplified model of Rb+KRb. This is a prototype for systems with very strong coupling at short range and…James F. E. Croft, Brian K. Kendrick, Jeremy M. Hutson·Apr 30, 2026SaveLearn
Hyperfine-resolved laser excitation and detection of nuclear isomer in trapped 229Th3+ ionsWe present a comprehensive theoretical investigation of hyperfine-resolved excitation and detection of the low-energy isomeric state of 229Th in trapped 229Th3+ ions. Using a…Wu Wang, Ke Zhang, Ke-Mi Xu et al.·Apr 30, 2026SaveLearn
Intermediate-state Coulomb-corrected strong-field approximation for rescattering processesWe analytically derive the all-order strong-field S-matrix series incorporating intermediate-state Coulomb-Volkov corrections (ICSFA). Focusing on rescattering processes described by the second-order…Chunli Miao, Jiarui Qin, Chan Li et al.·Apr 30, 2026SaveLearn
Fast, powerful, low-noise optical pumping of an atomic vapor with semiconductor optical amplifiersWe use a 87Rb atomic vapor, suitable for an optically-pumped magnetometer (OPM) in Earth-field conditions, to study the noise properties of three strategies for generating pulsed optical…Diana Méndez-Avalos, Théo Louzada Meireles, Morgan W. Mitchell et al.·Apr 29, 2026SaveLearn
Development of a compact cryogenic Penning trap with permanent magnets: An intermediate step toward the Shanghai Penning TrapPenning traps, renowned for their unparalleled precision in determining fundamental properties such as mass and magnetic moments, are cornerstone instruments in modern physics. Their applications…Tianhang Zhang, Jiawei Wang, Jialin Liu et al.·Apr 29, 2026SaveLearn
Precision Spectroscopy of 2S-nS Transitions in Atomic Hydrogen: A Determination of the Proton Charge RadiusWe present absolute frequency measurements of 2S1/2-nS1/2 two-photon transitions with n = 8, 9, and 10 in a cryogenic beam of atomic hydrogen. Each transition has been measured with a…R. G. Bullis, W. L. Tavis, M. R. Weiss et al.·Apr 29, 2026SaveLearn
Formation of gaseous, doubly charged cerium monofluoride CeF2+ and its sensitivity to new physicsTricationic protactinium monofluoride (229PaF3+) has been proposed as a candidate for probing physics beyond the Standard Model of particle physics. Since studies with 229PaF3+…R. Simpson, C. Zülch, K. B. Ng et al.·Apr 28, 2026SaveLearn
Ultrafast electron vortex produced by a grating made of lightThe generation of vortex matter waves carrying quantized orbital angular momentum is challenging and relies heavily on the material nanofabrication methods due to their extremely small de-Broglie…Zichen Li, Hao Liang, Yuan Gu et al.·Apr 28, 2026SaveLearn
The critical role of negative-energy states in the Land\'e g-factor of lithium-like ionsWe report relativistic many-body calculations of the interelectronic-interaction correction to the Land\'e g-factor of the 2s1/2, 2p1/2, 2p3/2, and 3s1/2 states in…Chang-Xian Song, Yong-Bo Tang·Apr 28, 2026SaveLearn
Collective Strong Coupling of Thermal Atoms to Integrated Microring ResonatorsStrong coupling between atomic ensembles and high-quality optical cavities enables collective and nonlinear phenomena that are central to cavity quantum electrodynamics (cQED). Although many…Xiaoyu Cheng, Benyamin Shnirman, Alexandra Köpf et al.·Apr 27, 2026SaveLearn
Simple tunable phase-locked lasers for quantum technologiesIn a wide range of quantum technology applications, ranging from atomic clocks to the creation of ultracold or quantum degenerate samples for atom interferometry, optimal laser sources are critical.…Nicola Agnew, David Lowit, Aidan S. Arnold·Apr 27, 2026SaveLearn
Wichmann-Kroll vacuum polarization correction to lithium-like systems in a Gaussian basis setRecent developments have seen the application of finite Gaussian basis sets to the α(Zα)n≥3 vacuum polarization. The energy shift for s and p electron states have been tabulated…Haisum Hayat, Harry M. Quiney·Apr 26, 2026SaveLearn
Disentangling the Effect of Ionic Coupling and Multiple Interfering Terms in Attosecond Molecular InterferometryAttosecond interferometry in a two-color field is central to attosecond metrology and spectroscopy. In this technique, a photoelectron wave packet is released when a single photon from an extreme…Ioannis Makos, Jakub Benda, David Busto et al.·Apr 25, 2026SaveLearn
On bound state spectra of the one-electron diatomic ionsThe total energies of a large number of diatomic (or two-center) one-electron A+ B+ e- ions with unit electrical charges are determined numerically to high accuracy. Based on these results…Alexei M. Frolov·Apr 25, 2026SaveLearn
Enhanced Atom Capture via Multi-Frequency Magneto-Optical TrappingMagneto-optical traps are central to atomic and molecular quantum technologies and precision tests of fundamental physics, where both sensitivity and bandwidth scale strongly with atom number and…Benjamin Hopton, Alexander Abbey, David Johnson et al.·Apr 25, 2026SaveLearn
Revisiting the luminescence properties of Pr3+: YAG within the framework of an extended approach of Judd-Ofelt theoryWe show in this article the improvements which can be obtained in the description of the luminescence properties of Pr3+ doped materials by using an extension of the Judd-Ofelt theory in order to…Maxence Lepers, G. Hovhannesyan, Y. Guyot et al.·Apr 23, 2026SaveLearn
High-order harmonic generation in argon driven by short laser pulses: effects of post-pulse propagation and windowingWe present ab initio calculations using the R-matrix with time dependence (RMT) method for high-order harmonic generation (HHG) in argon in a short, intense pulse regime. The calculations employ a…Aaron T. Bondy, Klaus Bartschat·Apr 21, 2026SaveLearn
Error-correcting transition pulses for co-located spin ensembles without frequency selectivityWe present a new class of control pulses designed to transfer co-located ensembles without relying on frequency selectivity, thereby allowing much faster state-transitions. A geometric approach…K. L. Wood, W. A. Terrano·Apr 21, 2026SaveLearn
Bound-state QED test above the Schwinger limit with kaonic fluorineKaonic atoms, formed when a negatively charged kaon replaces an electron in an atomic orbit, provide access to bound-state quantum electrodynamics (BSQED) in electromagnetic fields far stronger than…F. Clozza, S. Manti, F. Sgaramella et al.·Apr 21, 2026SaveLearn
The Stark effect in molecular Rydberg states: Calculation of Rydberg-Stark manifolds of H2 and D2 including fine and hyperfine structuresWe present a general theoretical treatment and calculations of the fine and hyperfine structures in the spectra of high-n molecular Rydberg states in static uniform electric fields. The treatment…Ioana Doran, Leon Jeckel, Maximilian Beyer et al.·Apr 21, 2026SaveLearn