Sensitivity to New Physics of Isotope Shift Studies using the Coronal Lines of Highly Charged Calcium IonsPromising searches for new physics beyond the current Standard Model (SM) of particle physics are feasible through isotope-shift spectroscopy, which is sensitive to a hypothetical fifth force between…Nils-Holger Rehbehn, Michael K. Rosner, Hendrik Bekker et al.·Feb 3, 2021SaveLearn
Fast control of atom-light interaction in a narrow linewidth cavityWe propose a method to exploit high finesse optical resonators for light assisted coherent manipulation of atomic ensembles, overcoming the limit imposed by the finite response time of the cavity.…A. Bertoldi, C. -H. Feng, D. S. Naik et al.·Feb 3, 2021SaveLearn
Generalized gravity-gradient mitigation schemeA major challenge in high-precision light-pulse atom interferometric experiments such as in tests of the weak equivalence principle is the uncontrollable dependency of the phase on initial velocity…Christian Ufrecht·Feb 3, 2021SaveLearn
Magnetic Moments of Lanthanide van der Waals DimersLoosely bound van der Waals dimers of lanthanide atoms, as might be obtained in ultracold atom experiments, are investigated. These molecules are known to exhibit a degree of quantum chaos, due to…Joseph McCann, John L. Bohn, Lucie D. Augustovičová·Feb 3, 2021SaveLearn
Observation of collectivity enhanced magnetoassociation of 6Li in the quantum degenerate regimeThe association process of Feshbach molecules is well described by a Landau-Zener (LZ) transition above the Fermi temperature, such that two-body physics dominates the dynamics. However, using 6Li…Vineetha Naniyil, Yijia Zhou, Guy Simmonds et al.·Feb 3, 2021SaveLearn
Hyperfine structure of the 2\,3\!P state in 9Be and the nuclear quadrupole momentWe have performed accurate calculations of the hyperfine structure of the 2\,3\!P state in the 9Be atom with the help of highly optimized, explicitly correlated functions, accounting for the…Mariusz Puchalski, Jacek Komasa, Krzysztof Pachucki·Feb 2, 2021SaveLearn
Multi-loop atomic Sagnac interferometryThe sensitivity of light and matter-wave interferometers to rotations is based on the Sagnac effect and increases with the area enclosed by the interferometer. In the case of light, the latter can be…Christian Schubert, Sven Abend, Matthias Gersemann et al.·Feb 1, 2021SaveLearn
Measurement of electric-field noise from interchangeable samples with a trapped-ion sensorWe demonstrate the use of a single trapped ion as a sensor to probe electric-field noise from interchangeable test surfaces. As proof of principle, we measure the magnitude and distance dependence of…Kyle S. McKay, Dustin A. Hite, Philip D. Kent et al.·Feb 1, 2021SaveLearn
Nonlinear spectroscopy of high-spin fluctuationsWe investigate theoretically and experimentally fluctuations of high spin (F>1/2) beyond the linear response regime and demonstrate dramatic modifications of the spin noise spectra in the high power…A. A. Fomin, M. Yu. Petrov, I. I. Ryzhov et al.·Feb 1, 2021SaveLearn
Measurement of ion displacement via RF power variation for excess micromotion compensationWe demonstrate a method of micromotion minimization of a trapped ion in a linear Paul trap based on the precision measurement of the ion trapping position displacement due to a stray electric field…Ryoichi Saito, Kota Saito, Takashi Mukaiyama·Feb 1, 2021SaveLearn
Semiclassical two-step model for ionization by a strong laser pulse: Further developments and applicationsWe review the semiclassical two-step model for strong-field ionization. The semiclassical two-step model describes quantum interference and accounts for the ionic potential beyond the semiclassical…N. I. Shvetsov-Shilovski·Jan 31, 2021SaveLearn
Nuclear polarization effects in atoms and ionsIn heavy atoms and ions, nuclear structure effects are significantly enhanced due to the overlap of the electron wave functions with the nucleus. This overlap rapidly increases with the nuclear…V. V. Flambaum, I. B. Samsonov, H. B. Tran Tan et al.·Jan 31, 2021SaveLearn
Non-relativistic Effective Quantum Mechanics of the Coulomb InteractionWe apply the ideas of effective field theory to nonrelativistic quantum mechanics. Utilizing an artificial boundary of ignorance as a calculational tool, we develop the effective theory using…David M. Jacobs, Matthew Jankowski·Jan 31, 2021SaveLearn
Simple electron-impact excitation cross-sections including plasma density effectsThe modeling of non-local-thermodynamic-equilibrium plasmas is crucial for many aspects of high-energy-density physics. It often requires collisional-radiative models coupled with…Jean-Christophe Pain, Djamel Benredjem·Jan 30, 2021SaveLearn
A high-flux, adjustable, compact cold-atom sourceMagneto-optical traps (MOTs) are widely used for laser cooling of atoms. We have developed a high-flux compact cold-atom source based on a pyramid MOT with a unique adjustable aperture that is highly…Sean Ravenhall, Benjamin Yuen, Chris Foot·Jan 30, 2021SaveLearn
Strong Field Ionization of Water: Nuclear Dynamics Revealed by Varying the Pulse DurationPolyatomic molecules in strong laser fields can undergo substantial nuclear motion within tens of femtoseconds. Ion imaging methods based on dissociation or Coulomb explosion therefore have…A. J. Howard, C. Cheng, R. Forbes et al.·Jan 28, 2021SaveLearn
Determining the Angle-of-Arrival of an Radio-Frequency Source with a Rydberg Atom-Based SensorIn this work, we demonstrate the use of a Rydberg atom-based sensor for determining the angle-of-arrival of an incident radio-frequency (RF) wave or signal. The technique uses electromagnetically…Amy K. Robinson, Nikunjkumar Prajapati, Damir Senic et al.·Jan 28, 2021SaveLearn
Electron spectroscopy of single quantum objects to directly correlate the local structure to their electronic transport and optical propertiesPhysical property of a single quantum object is governed by its precise atomic arrangement. The direct correlation of localized physical properties with the atomic structures has been therefore…Ryosuke Senga, Thomas Pichler, Kazu Suenaga·Jan 28, 2021SaveLearn
Controlling core-hole lifetime through an x-ray planar cavityIt has long been believed that core-hole lifetime (CHL) of an atom is an intrinsic physical property, and controlling it is significant yet is very hard. Here, CHL of the 2p state of W atom is…Xin-Chao Huang, Xiang-Jin Kong, Tian-Jun Li et al.·Jan 27, 2021SaveLearn
Visible spectra of W8+ in an electron-beam ion trapTo provide spectroscopic data for lowly charged tungsten ions relevant to fusion research, this work focuses on the W8+ ion. Six visible spectra lines in the range of 420-660 nm are observed with a…Q. Lu, C. L. Yan, J. Meng et al.·Jan 27, 2021SaveLearn
Observation of photon recoil effects in single-beam absorption spectroscopy with an ultracold strontium gasWe report on observing photon recoil effects in the absorption of a single monochromatic light at 689~nm through an ultracold 88Sr gas, where the recoil frequency is comparable to natural…Fachao Hu, Canzhu Tan, Yuhai Jiang et al.·Jan 27, 2021SaveLearn
Superradiant detection of microscopic optical dipolar interactionsThe interaction between light and cold atoms is a complex phenomenon potentially featuring many-body resonant dipole interactions. A major obstacle toward exploring these quantum resources of the…Lingjing Ji, Yizun He, Qingnan Cai et al.·Jan 26, 2021SaveLearn
Semiclassical Lindblad master equation for spin dynamicsWe derive the semi-classical Lindblad master equation in phase space for both canonical and non-canonical Poisson brackets using the Wigner-Moyal formalism and the Moyal star-product. The…J. Dubois, Ulf Saalmann, Jan M. Rost·Jan 26, 2021SaveLearn
High-Harmonic Generation in the Water Window from mid-IR Laser SourcesWe investigate the harmonic response of neon atoms to mid-IR laser fields (2000-3000nm) using a single-active electron (SAE) model and the fully ab initio all-electron R-Matrix with Time-dependence…Keegan Finger, David Atri-Schuller, Nicolas Douguet et al.·Jan 26, 2021SaveLearn
Probing Multiple Electric Dipole Forbidden Optical Transitions in Highly Charged Nickel IonsHighly charged ions (HCIs) are promising candidates for the next generation of atomic clocks, owing to their tightly bound electron cloud, which significantly suppresses the common environmental…Shi-Yong Liang, Ting-Xian Zhang, Hua Guan et al.·Jan 26, 2021SaveLearn