Probing Fundamental Symmetries of Deformed Nuclei in Symmetric Top MoleculesPrecision measurements of Schiff moments in heavy, deformed nuclei are sensitive probes of beyond Standard Model T,P-violation in the hadronic sector. While the most sensitive limits on Schiff…Phelan Yu, Nicholas R. Hutzler·Aug 20, 2020SaveLearn
Precision Metrology Meets Cosmology: Improved Constraints on Ultralight Dark Matter from Atom-Cavity Frequency ComparisonsWe conduct frequency comparisons between a state-of-the-art strontium optical lattice clock, a cryogenic crystalline silicon cavity, and a hydrogen maser to set new bounds on the coupling of…Colin J. Kennedy, Eric Oelker, John M. Robinson et al.·Aug 20, 2020SaveLearn
A pulsed ion microscope to probe quantum gasesThe advent of the quantum gas microscope allowed for the in situ probing of ultracold gaseous matter on an unprecedented level of spatial resolution. The study of phenomena on ever smaller length…C. Veit, N. Zuber, O. A. Herrera-Sancho et al.·Aug 19, 2020SaveLearn
Measurement of collisions between laser cooled cesium atoms and trapped cesium ionsWe report the measurement of collision rate coefficient for collisions between ultracold Cs atoms and low energy Cs+ ions. The experiments are performed in a hybrid trap consisting of a…Sourav Dutta, S. A. Rangwala·Aug 19, 2020SaveLearn
Driven One-Particle Quantum CyclotronA quantum cyclotron is one trapped electron or positron that occupies only its lowest cyclotron and spin states. A master equation is solved for a driven quantum cyclotron with a QND (quantum…Xing Fan, Gerald Gabrielse·Aug 18, 2020SaveLearn
Revisiting 129Xe electric dipole moment measurements applying a new global phase fitting approachBy measuring the nuclear magnetic spin precession frequencies of polarized 129Xe and 3He, a new upper limit on the 129Xe atomic electric dipole moment (EDM) $ dA…T. Liu, K. Rolfs, I. Fan et al.·Aug 18, 2020SaveLearn
Multichannel quantum-defect theory for anisotropic interactionsWe present a general formulation of multichannel quantum-defect theory (MQDT) for anisotropic long-range potentials. The theory unifies the treatment of atomic and molecular interactions of all…Bo Gao·Aug 18, 2020SaveLearn
A high-repetition rate attosecond light source for time-resolved coincidencespectroscopyAttosecond pulses, produced through high-order harmonic generation in gases, have been successfully used for observing ultrafast, sub-femtosecond electron dynamics in atoms, molecules and solid state…Sara Mikaelsson, Jan Vogelsang, Chen Guo et al.·Aug 18, 2020SaveLearn
Electric Nondipole Effect in Strong-Field IonizationStrong-field ionization of atoms by circularly polarized femtosecond laser pulses produces a donut-shaped electron momentum distribution. Within the dipole approximation this distribution is…A. Hartung, S. Brennecke, K. Lin et al.·Aug 17, 2020SaveLearn
Electronic isotope shift factors for the Ir 5d76s2 \ 4\!F9/2 (odd,J= 9/2) line at 247.587 nmWe present the theoretical calculations of the electronic isotope shift factors of the 5d76s2 \ 4\!F9/2 (odd,J= 9/2) line at 247.587 nm, that were recently used to extract…Sacha Schiffmann, Michel Godefroid·Aug 17, 2020SaveLearn
A robust, high-flux source of laser-cooled ytterbium atomsWe present a high-flux source of cold ytterbium atoms that is robust, lightweight and low-maintenance. Our apparatus delivers 109 atoms/s into a 3D magneto-optical trap without requiring…E. Wodey, R. J. Rengelink, C. Meiners et al.·Aug 17, 2020SaveLearn
A first spectroscopic measurement of the magnetic field strength for an active region of the solar coronaFor all involved in astronomy, the importance of monitoring and determining astrophysical magnetic field strengths is clear. It is also a well-known fact that the corona magnetic fields play an…Ran Si, Tomas Brage, Wenxian Li et al.·Aug 17, 2020SaveLearn
Resonant propagation of x-rays from the linear to the nonlinear regimeWe present a theoretical study of temporal, spectral, and spatial reshaping of intense, ultrafast x-ray pulses propagating through a resonant medium. Our calculations are based on the solution of a…Kai Li, Marie Labeye, Phay J. Ho et al.·Aug 16, 2020SaveLearn
Analytical and numerical expressions for the number of atomic configurations contained in a supershellWe present three explicit formulas for the number of electronic configurations in an atom, i.e. the number of ways to distribute Q electrons in N subshells of respective degeneracies g1,…Jean-Christophe Pain, Michel Poirier·Aug 16, 2020SaveLearn
Inducing enantiosensitive permanent multipoles in isotropic samples with two-color fieldsWe find that two-color fields can induce field-free permanent dipoles in initially isotropic samples of chiral molecules via resonant electronic excitation in a one-3ω-photon vs.…Andres F. Ordonez, Olga Smirnova·Aug 14, 2020SaveLearn
Numerical time-of-flight analysis of the strong-field photoeffectShort-time filtering of the photoionization amplitude extracted straight from the numerical solution of the time-dependent Schrödinger equation (TDSE) is used to identify dominant pathways that form…V. A. Tulsky, D. Bauer·Aug 14, 2020SaveLearn
Frequency ratio of an 115In+ ion clock and a 87Sr optical lattice clockWe report on the first frequency ratio measurement of an 115In+ single ion clock and a 87Sr optical lattice clock. A hydrogen maser serves as a reference oscillator to measure the ratio by…Nozomi Ohtsubo, Ying Li, Nils Nemitz et al.·Aug 14, 2020SaveLearn
Laser Cooling of Transition Metal AtomsWe propose the application of laser cooling to a number of transition-metal atoms, allowing numerous bosonic and fermionic atomic gases to be cooled to ultra-low temperatures. The non-zero electron…Scott Eustice, Kayleigh Cassella, Dan Stamper-Kurn·Aug 14, 2020SaveLearn
Physically significant phase shifts in matter-wave interferometryMany different formalisms exist for computing the phase of a matter-wave interferometer. However, it can be challenging to develop physical intuition about what a particular interferometer is…Chris Overstreet, Peter Asenbaum, Mark A. Kasevich·Aug 12, 2020SaveLearn
Structured beams invariant to coherent diffusionBessel beams are renowned members of a wide family of non-diffracting (propagation-invariant) fields. We report on experiments showing that non-diffracting fields are also immune to diffusion. We map…Slava Smartsev, Ronen Chriki, David Eger et al.·Aug 12, 2020SaveLearn
Photoionization of astrophysically relevant atomic ions at PIPEWe review recent work on the photoionization of atomic ions of astrophysical interest that has been carried out at the photon-ion merged-beams setup PIPE, a permanently installed end station at the…Stefan Schippers, Alfred Müller·Aug 12, 2020SaveLearn
Characterisation of the b3Σ+, v=0 State and Its Interaction with the A1Π State in Aluminium MonofluorideRecently, we determined the detailed energy level structure of the X1Σ+, A1Π and a3Π states of AlF that are relevant to laser cooling and trapping experiments. Here, we investigate the…Maximilian Doppelbauer, Nicole Walter, Simon Hofsäss et al.·Aug 12, 2020SaveLearn
Single-Photon Stored-Light InterferometryWe demonstrate a single-photon stored-light interferometer, where a photon is stored in a laser-cooled atomic ensemble in the form of a Rydberg polariton with a spatial extent of $10…Yuechun Jiao, Nicholas L. R. Spong, Oliver D. W. Hughes et al.·Aug 11, 2020SaveLearn
Ionisation rate and Stark shift of a one-dimensional model of the Hydrogen molecular ionIn this paper we study the ionization rate and the Stark shift of a one-dimensional model of the H2+ ion. The finding of these two quantities is reduced to the solutions of a complex…J. C. G. Henriques, Thomas G. Pedersen, N. M. R. Peres·Aug 11, 2020SaveLearn
Measurement of the Principal Quantum Number Distribution in a Beam of Antihydrogen AtomsThe ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in a beam at the CERN Antiproton…B. Kolbinger, C. Amsler, S. Arguedas Cuendis et al.·Aug 10, 2020SaveLearn