A Compact X-Ray Laser with Ion Source and Crystal CavityX-ray free-electron lasers (XFELs) are renowned for their high brightness, significantly impacting biology, chemistry, and nonlinear X-ray optics. However, current XFELs are large, expensive, and…Shuang Li·Dec 13, 2024SaveLearn
Nonlinear calcium King plot constrains new bosons and nuclear propertiesNonlinearities in King plots (KP) of isotope shifts (IS) can reveal the existence of beyond-Standard-Model (BSM) interactions that couple electrons and neutrons. However, it is crucial to distinguish…A. Wilzewski, L. I. Huber, M. Door et al.·Dec 13, 2024SaveLearn
A high optical access cryogenic system for Rydberg atom arrays with a 3000-second trap lifetimeWe present an optical tweezer array of 87Rb atoms housed in an cryogenic environment that successfully combines a 4 K cryopumping surface, a <50 K cold box surrounding the atoms, and a…Zhenpu Zhang, Ting-Wei Hsu, Ting You Tan et al.·Dec 13, 2024SaveLearn
Lorentz and CPT violation and the hydrogen and antihydrogen molecular ions I -- rovibrational statesThe extremely narrow natural linewidths of rovibrational energy levels in the molecular hydrogen ion H2\,+, and the prospect of synthesising its antimatter counterpart…Graham M. Shore·Dec 12, 2024SaveLearn
Photo-Induced Quenching of the 229Th Isomer in a Solid-State HostThe population dynamics of the 229Th isomeric state is studied in a solid-state host under laser illumination. A photoquenching process is observed, where off-resonant vacuum-ultraviolet (VUV)…J. E. S. Terhune, R. Elwell, H. B. Tran Tan et al.·Dec 12, 2024SaveLearn
Inelastic scattering of vortex electrons beyond the Born approximationWe present a theoretical study of the inelastic scattering of vortex electrons by a hydrogen atom. In our study, special emphasis is placed on the effects of the Coulomb interaction between a…S. Strnat, J. Sommerfeldt, A. K. Sahoo et al.·Dec 11, 2024SaveLearn
Diffraction patterns in attosecond photoionization time delayUpon absorbing a photon, the ionized electron sails through the target force field in attoseconds to reach free space. This navigation probes details of the potential landscape that get imprinted…Sajad Azizi, Mohamed El-Amine Madjet, Zheng Li et al.·Dec 11, 2024SaveLearn
Atomic-optical interferometry in fractured loops: a general solution for Rydberg radio frequency receiversThe development of novel radio frequency atomic receivers brings attention to the theoretical description of atom-light interactions in sophisticated, multilevel schemes. Of special interest, are the…Bartosz Kasza, Sebastian Borówka, Wojciech Wasilewski et al.·Dec 10, 2024SaveLearn
Impact-parameter selective Rydberg atom collision by optical tweezersCold collisions between two Rydberg rubidium atoms (87Rb) are investigated by controlling the impact parameter and collision energy. Optical tweezers are employed to hold one atom stationary…Hansub Hwang, Sunhwa Hwang, Jaewook Ahn et al.·Dec 9, 2024SaveLearn
Testing for isospin symmetry breaking with extensive calculations of isotope shift factors in potassiumPrecise evaluation of the isotope shift (IS) factors for seven low-lying potassium (K) states is achieved using relativistic coupled-cluster (RCC) theory. The energies of these states are assessed…Vaibhav Katyal, A. Chakraborty, B. K. Sahoo et al.·Dec 8, 2024SaveLearn
Ultralong-range Rydberg molecules of Hg atomsUltralong-range Rydberg molecules, composed of an excited Rydberg atom and a ground-state atom, are characterized by large bond lengths, dipole moments, sensitivity to external fields, and an unusual…Agata Wojciechowska, Michał Tomza, Matthew T. Eiles·Dec 6, 2024SaveLearn
Light-induced, fictitious magnetic trapping of cold alkali atoms using an optical tweezers-nanofiber hybrid platformWe present a magnetic trapping scheme for cold 87Rb atoms based on light-induced fictitious magnetic fields generated by the evanescent field of an optical nanofiber (ONF) integrated with an optical…Alexey Vylegzhanin, Dylan J. Brown, Sergey Abdrakhmanov et al.·Dec 6, 2024SaveLearn
Energies of I8+ through I12+ low-lying levelsHigh-accuracy Multi-Configuration Dirac-Hartree-Fock with Configuration Interaction calculations of level energies and transition rates have been carried out for iodine I8+ through I12+…Karol Kozioł, Jacek Rzadkiewicz·Dec 5, 2024SaveLearn
Sensitive Low-Recoil VUV 1+1' REMPI Detection of ND3In molecular beam scattering experiments, an important technique for measuring product energy and angular distributions is velocity map imaging following photoionization. For studies with cold…Stach E. J. Kuijpers, Panagiotis Kalaitzis, Evangelia Sakkoula et al.·Dec 3, 2024SaveLearn
Analytical and numerical studies of periodic superradianceWe conduct a theoretical study to understand the periodic superradiance observed in an Er:YSO crystal. First, we construct a model based on the Maxwell-Bloch equations for a reduced level system, a…Hideaki Hara, Yuki Miyamoto, Junseok Han et al.·Dec 3, 2024SaveLearn
Electron-impact ionization of Si IV-VIII relevant for inertial confinement fusionIn this work, we investigate the ionization of silicon by electron impacts in hot plasmas. Our calculations of the cross sections and rates rely on the Coulomb-Born-Exchange, Binary-Encounter-Dipole…Jean-Christophe Pain, Djamel Benredjem·Dec 2, 2024SaveLearn
Scattering in e- -(pe-) and μ- -(pμ-) systems: mass dependent and mass independent features of cross sections above the degenerated thresholdsAb initio calculation of low energy scattering of electrons (muons) off hydrogen (muonic hydrogen) are performed on the basis of Faddeev-Merkuriev (FM) equations. The explicit contribution of induced…V. A. Gradusov, S. L. Yakovlev·Dec 2, 2024SaveLearn
Hanle Effect for Lifetime Analysis: Li-like IonsAccurate lifetime measurements of excited states of highly charged ions (HCIs) are essential for advancing diagnostics in both laboratory and astrophysical plasmas, especially in the X-ray regime.…Jan Richter, Moto Togawa, José R. Crespo López-Urrutia et al.·Dec 2, 2024SaveLearn
Para- and diamagnetic contributions to magnetic shielding constants of relativistic hydrogenlike atoms in some low-lying discrete energy eigenstatesWe present tabulated data for numerical calculations of relative para- and diamagentic contributions to the magnetic shielding constant (σ) of the Dirac one-electron atoms with a pointlike,…Patrycja Stefańska·Dec 2, 2024SaveLearn
Self-energy correction to the E1 transition amplitudes in hydrogen-like ionsWe present calculations of the self-energy correction to the E1 transition amplitudes in hydrogen-like ions, performed to all orders in the nuclear binding strength parameter. Our results for the…M. G. Kozlov, M. Y. Kaygorodov, Yu. A. Demidov et al.·Dec 2, 2024SaveLearn
Non-perturbative Effects in Attosecond Four-Wave Mixing SpectraWe study the nonlinear optical response of argon to a four-wave-mixing pulse sequence consisting of an extreme ultraviolet pulse, an overlapping collinear IR and an non-collinear delayed IR pulses.…Sergio Yanez-Pagans, Nathan Harkema, Arvinder Sandhu et al.·Dec 1, 2024SaveLearn
Coherence of Symmetry-Protected Rotational Qubits in Cold Polyatomic MoleculesPolar polyatomic molecules provide an ideal but largely unexplored platform to encode qubits in rotational states. Here, we trap cold (100-600 mK) formaldehyde (H2CO) inside an electric box and…Maximilian Löw, Martin Ibrügger, Gerhard Rempe et al.·Dec 1, 2024SaveLearn
Precise Determination of Excited State Rotational Constants and Black-Body Thermometry in Coulomb Crystals of Ca+ and CaH+We present high-resolution rovibronic spectroscopy of calcium monohydride molecular ions (CaH+) co-trapped in a Coulomb crystal with calcium ions (40Ca+), focusing on rotational…Swapnil Patel, Kenneth R. Brown·Nov 30, 2024SaveLearn
Two-Photon Optical Ramsey-Doppler Spectroscopy of Positronium and MuoniumPositronium and muonium, as purely leptonic atoms without internal structure, provide ideal systems for high-precision tests of quantum electrodynamics (QED) and measurements of fundamental…Evans Javary, Edward Thorpe-Woods, Irene Cortinovis et al.·Nov 29, 2024SaveLearn
Below threshold nonsequential double ionization with linearly polarized two-color fields I: symmetry and dominanceWe investigate laser-induced nonsequential double ionization with linearly polarized bichromatic fields, focusing on the recollision-excitation with subsequent ionization (RESI) mechanism. Using the…S. Hashim, D. Habibović, C. Figueira de Morisson Faria·Nov 29, 2024SaveLearn