High Harmonic Generation without Tunnel-IonizationA new High Harmonic Generation (HHG) scheme, which doesn't rely on Tunnel-Ionization as the ionization mechanism but rather on Single-Photon Ionization, is theoretically proposed and numerically…Jonathan Berkheim, Eliyahu Bordo, Eldar Ragonis et al.·Dec 20, 2022SaveLearn
A Portal for High-Precision Atomic Data and Computation: Design and Best PracticesThe Atom portal, udel.edu/atom, provides the scientific community with easily accessible high-quality data about properties of atoms and ions, such as energies, transition matrix elements, transition…Parinaz Barakhshan, Akshay Bhosale, Amani Kiruga et al.·Dec 20, 2022SaveLearn
Roles of laser ellipticity in attoclockWe study ionization of atoms in strong elliptically-polarized laser fields numerically and analytically. We focus on effects of laser ellipticity on the offset angle in photoelectron momentum…J. Y. Che, J. Y. Huang, F. B. Zhang et al.·Dec 19, 2022SaveLearn
Cold collisions between alkali and alkaline-earth hetero nuclear atom-ion system Li + Ba+In a recent experiment by Schaetz group weckesser2021, the quantum s-wave regime has been attained for alkali and alkaline-earth atom-ion combination (Li-Ba+). We investigate possible…D. Sardar, S. Naskar·Dec 19, 2022SaveLearn
Calculation of the local environment of a barium monofluoride molecule in an argon matrix: A step towards using matrix-isolated BaF for determining the electron electric dipole momentThe local environment of a barium monofluoride (BaF) molecule embedded in an argon matrix is calculated. A substitution of a BaF molecule for four Ar atoms is found to be strongly favoured compared…R. L. Lambo, G. K. Koyanagi, A. Ragyanszki et al.·Dec 19, 2022SaveLearn
Nonequilibrium steady state in a large magneto-optical trapConsidering light-mediated long-range interactions between cold atoms in a magneto-optical trap (MOT), we present numerical evidence of a nonequilibrium steady state (NESS) for sufficiently large…Marius Gaudesius, Yong-Chang Zhang, Thomas Pohl et al.·Dec 16, 2022SaveLearn
Evaluation of a 88Sr+ optical clock with a direct measurement of the blackbody radiation shift and determination of the clock frequencyWe report on an evaluation of an optical clock that uses the 2S1/2 → 2D5/2 transition of a single 88Sr+ ion as the reference. In contrast to previous…M. Steinel, H. Shao, M. Filzinger et al.·Dec 16, 2022SaveLearn
Resonantly enhanced interatomic Coulombic electron capture in a system of three atomsIn interatomic Coulombic electron capture, the capture of a free electron at an atomic center is accompanied by the radiationless transfer of the excess energy to a neighboring atom of different…S. Remme, A. B. Voitkiv, C. Müller·Dec 16, 2022SaveLearn
Voigt transmission windows in optically thick atomic vapours: a method to create single-peaked line centre filtersCascading light through two thermal vapour cells has been shown to improve the performance of atomic filters that aim to maximise peak transmission over a minimised bandpass window. In this paper, we…Jack D Briscoe, Fraser D Logue, Danielle Pizzey et al.·Dec 16, 2022SaveLearn
Ab initio in-medium similarity renormalization group for open-shell atomic systemsPrecise theoretical calculations of open-shell atomic systems are critical for extracting fundamental physics parameters from precision experiments. Here we present proof-of-principle calculations…G. Tenkila, V. Chand, T. Miyagi et al.·Dec 15, 2022SaveLearn
Long-range states and Feshbach resonances in collisions between ultracold alkali-metal diatomic molecules and atomsWe consider the long-range states expected for complexes formed from an alkali-metal diatomic molecule in a singlet state and an alkali-metal atom. We explore the structure of the Hamiltonian for…Matthew D. Frye, Jeremy M. Hutson·Dec 15, 2022SaveLearn
Blue-Detuned Magneto-Optical Trap of MoleculesDirect laser cooling of molecules has reached a phase space density exceeding 10-6 in optical traps, but with rather small molecular numbers. To progress towards quantum degeneracy, a mechanism…Justin J. Burau, Parul Aggarwal, Kameron Mehling et al.·Dec 14, 2022SaveLearn
Rotation related systematic effects in a cold atom interferometer onboard a Nadir pointing satelliteWe study the effects of rotations on a cold atom accelerometer onboard a Nadir pointing satellite. A simulation of the satellite attitude combined with a calculation of the phase of the cold atom…Quentin Beaufils, Julien Lefebve, Joel Gomes Baptista et al.·Dec 13, 2022SaveLearn
Trapping and Ground-State Cooling of a Single H2+We demonstrate co-trapping and sideband cooling of a H2+ - 9Be+ ion pair in a cryogenic Paul trap. We study the chemical lifetime of H2+ and its dependence on the apparatus temperature,…N. Schwegler, D. Holzapfel, M. Stadler et al.·Dec 13, 2022SaveLearn
Relativistic strong-field ionization of hydrogen-like atomic systems in constant crossed electromagnetic fieldsRelativistic strong-field ionization of hydrogen-like atoms or ions in a constant crossed electromagnetic field is studied. The transition amplitude is formulated within the strong-field…A. Eckey, M. Klaiber, A. B. Voitkiv et al.·Dec 13, 2022SaveLearn
Search for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocksWe search for ultralight scalar dark matter candidates that induce oscillations of the fine structure constant, the electron and quark masses, and the quantum chromodynamics energy scale with…Takumi Kobayashi, Akifumi Takamizawa, Daisuke Akamatsu et al.·Dec 12, 2022SaveLearn
A scheme for excitation of thorium-229 nuclei based on the electronic bridge excitaionThorium-229 possesses the lowest nuclear first excited state with an energy of about 8 eV. The extremely narrow linewidth of the nuclear first excited state with the uncertainty of 53 THz prevents…Lin Li, Zi Li, Chen Wang et al.·Dec 12, 2022SaveLearn
Experimental Demonstration of Stationary Dark-State Polaritons Dressed by Dipole-Dipole InteractionDark-state polaritons (DSPs) based on the effect of electromagnetically induced transparency are bosonic quasiparticles, representing the superpositions of photons and atomic ground-state coherences.…Bongjune Kim, Ko-Tang Chen, Kuei-You Chen et al.·Dec 11, 2022SaveLearn
Adiabatically controlled motional states of a ground-state cooled CaO+ and Ca+ trapped ion chainControl of the external degree of freedom of trapped molecular ions is a prerequisite for their promising applications to spectroscopy, precision measurements of fundamental constants, and quantum…Lu Qi, Evan C. Reed, Kenneth R. Brown·Dec 9, 2022SaveLearn
Coulomb scattering inducing time lag in strong-field tunneling ionizationWe study ionization of atoms in strong elliptically-polarized laser fields. We focus on the physical origin of the offset angle in the photoelectron momentum distribution and its possible relation to…Y. G. Peng, J. Y. Che, C. Chen et al.·Dec 9, 2022SaveLearn
Ultrastable, high-repetition-rate attosecond beamline for time-resolved XUV-IR coincidence spectroscopyThe implementation of attosecond photoelectron-photoion coincidence spectroscopy for the investigation of atomic and molecular dynamics calls for a high-repetition-rate driving source combined with…Dominik Ertel, Marvin Schmoll, Samuel Kellerer et al.·Dec 9, 2022SaveLearn
Strong-field ionization and AC-Stark shifted Rydberg states in OCSWe present theoretical results for intensity-dependent above-threshold ionization (ATI) spectra from oriented OCS molecules probed by intense femtosecond laser pulses with wavelengths of 800 and 400…Mahmoud Abu-samha, Lars Bojer Madsen·Dec 9, 2022SaveLearn
Search for ultralight dark matter with spectroscopy of radio-frequency atomic transitionsThe effects of scalar and pseudoscalar ultralight bosonic dark matter (UBDM) were searched for by comparing the frequency of a quartz oscillator to that of a hyperfine-structure transition in…Xue Zhang, Abhishek Banerjee, Mahapan Leyser et al.·Dec 8, 2022SaveLearn
A self-locking Rydberg atom electric field sensorA crucial step towards enabling real-world applications for quantum sensing devices such as Rydberg atom electric field sensors is reducing their size, weight, power, and cost (SWaP-C) requirements…C. T. Fancher, K. Nicolich, K. Backes et al.·Dec 8, 2022SaveLearn
Laser-induced Coulomb Explosion Imaging of Alkali Dimers on Helium NanodropletsAlkali dimers, Ak2, residing on the surface of He nanodroplets are doubly ionized due to multiphoton absorption from an intense, 50-fs laser pulse leading to fragmentation into a pair of…Henrik H. Kristensen, Lorenz Kranabetter, Constant A. Schouder et al.·Dec 7, 2022SaveLearn