Now showing items 82-101 of 122

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    Relativistic configuration interaction plus linearized-coupled-cluster calculations of U2+ energies, g factors, transition rates, and lifetimes 

    Savukov, I.; Safronova, U. I.; Safronova, M. S. (2015)
    Excitation energies, term designations, g factors, transition rates, and lifetimes of U2+ are determined using a relativistic configuration interaction (CI) + linearized-coupled-cluster (LCC) approach. The CI-LCC energies ...
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    Relativistic many-body calculation of energies, lifetimes, polarizabilities, blackbody radiative shift, and hyperfine constants in Lu2+ 

    Safronova, U. I.; Safronova, M. S.; Johnson, W. R. (2016)
    Energy levels of 30 low-lying states of Lu2+ and allowed electric-dipole matrix elements between these states are evaluated using a relativistic all-order method in which all single, double, and partial triple excitations ...
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    Relativistic many-body calculation of energies, multipole transition rates, and lifetimes in tungsten ions 

    Safronova, U. I.; Safronova, M. S.; Nakamura, Nobuyuki (2017)
    Atomic properties of Cd-like W26+, In-like W25+, and Sn-like W24+ ions are evaluated by using a relativistic CI + all-order approach that combines configuration-interaction and the coupled-cluster methods. The energies, ...
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    Repetitive Solid Spherical Pellet Injection and Irradiation toward the Repetitive-mode Fast-Ignition Fusion mini-Reactor CANDY. 

    Hanayama, Ryohei; Komeda, Osamu; Nishimura, Yasuhiko; Mori, Yoshitaka; Ishii, Katsuhiro; Nakayama, Suisei; Okihara, Shinichiro; Fujita, Kazuhisa; Sekine, Takashi; Sato, Nakahiro; Kurita, Takashi; Kawashima, Toshiyuki; Kan, Hirofumi; Nakamura, Naoki; Kondo, Takuya; Fujine, Manabu; Azuma, Hirozumi; Hioki, Tatsumi; Kakeno, Mitsutaka; Motohiro, Tomoyoshi; Sunahara, Atsushi; Sentoku, Yasuhiko; Miura, Eisuke; Kitagawa, Yoneyoshi (2016)
    Pellet injection and repetitive laser illumination are key technologies for realizing inertial fusion energy[1-4]. Neutron generator using lasers also requires a repeating pellet target supplier. Here we present the first ...
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    Resonant interaction of trapped cold atoms with a magnetic cantilever tip 

    Monge, Cris A. M.; Valencia, Jose; Geraci, Andrew A.; Eardley, Matthew; Moreland, John; Hollberg, Leo; Kitching, John (2015)
    Magnetic resonance in an ensemble of laser-cooled trapped Rb atoms is excited using a microcantilever with a magnetic tip. The cantilever is mounted on a multilayer chip designed to capture, cool, and magnetically transport ...
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    Results from the 2014 November 15th Multi-Chord Stellar Occultation by the Tno (229762) 2007 Uk126 

    Benedetti-Rossi, G.; Sicardy, B.; Buie, M. W.; Ortiz, J. L.; Vieira-Martins, R.; Keller, Jennifer M.; Braga-Ribas, F.; Camargo, J. I. B.; Assafin, M.; Morales, N.; Duffard, R.; Dias-Oliveira, A.; Santos-Sanz, P.; Desmars, J.; Gomes-Junior, A. R.; Leiva, R.; Bardecker, J.; Bean, J. K.; Olsen, A. M.; Ruby, D. W.; Sumner, R.; Thirouin, A.; Gomez-Munoz, M. A.; Gutierrez, L.; Wasserman, L.; Charbonneau, D.; Irwin, J.; Levine, S.; Skiff, B. (2016)
    We present results derived from the first multi-chord stellar occultation by the trans-Neptunian object (229762) 2007 UK126, observed on 2014 November 15. The event was observed by the Research and Education Collaborative ...
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    Role of hydrogen bonding in hysteresis observed in sorption-induced swelling of soft nanoporous polymers 

    Chen, Mingyang; Coasne, Benoit; Guyer, Robert A.; Derome, Dominique; Carmeliet, Jan (2018)
    Hysteresis is observed in sorption-induced swelling in various soft nanoporous polymers. The associated coupling mechanism responsible for the observed sorption-induced swelling and associated hysteresis needs to be ...
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    Search for domain wall dark matter with atomic clocks on board global positioning system satellites 

    Roberts, Benjamin M.; Blewitt, Geoffrey; Dailey, Conner B.; Murphy, Mac; Pospelov, Maxim; Rollings, Alex; Sherman, Jeff; Williams, Wyatt; Derevianko, Andrei (2017)
    Cosmological observations indicate that dark matter makes up 85% of all matter in the universe yet its microscopic composition remains a mystery. Dark matter could arise from ultralight quantum fields that form macroscopic ...
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    Self-generated surface magnetic fields inhibit laser-driven sheath acceleration of high-energy protons 

    Nakatsutsumi, M.; Sentoku, Y.; Korzhimanov, A.; Chen, S. N.; Buffechoux, S.; Kon, A.; Atherton, B.; Audebert, P.; Geissel, M.; Hurd, L.; Kimmel, M.; Rambo, P.; Schollmeier, M.; Schwarz, J.; Starodubtsev, M.; Gremillet, L.; Kodama, Ryosuke; Fuchs, J. (2018)
    High-intensity lasers interacting with solid foils produce copious numbers of relativistic electrons, which in turn create strong sheath electric fields around the target. The proton beams accelerated in such fields have ...
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    Sensing short range forces with a nanosphere matter-wave interferometer 

    Geraci, Andrew A.; Goldman, Hart (2015)
    We describe a method for sensing short range forces using matter-wave interference in dielectric nanospheres. When compared with atom interferometers, the larger mass of the nanosphere results in reduced wave-packet ...
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    Sensitivity of Atom Interferometry to Ultralight Scalar Field Dark Matter 

    Geraci, Andrew A.; Derevianko, Andrei (2016)
    We discuss the use of atom interferometry as a tool to search for dark matter (DM) composed of virialized ultralight fields (VULFs). Previous work on VULF DM detection using accelerometers has considered the possibility ...
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    Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization 

    Grundmann, S.; Trinter, F.; Bray, A. W.; Eckart, S.; Rist, J.; Kastirke, Gregor; Metz, D.; Klumpp, S.; Viefhaus, J.; Schmidt, L. Ph H.; Williams, J. B.; Doerner, Reinhard; Jahnke, Till; Schoeffler, M. S.; Kheifets, A. S. (2018)
    We report on a kinematically complete measurement of double ionization of helium by a single 1100 eV circularly polarized photon. By exploiting dipole selection rules in the two-electron continuum state, we observed the ...
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    Shaped nozzles for cryogenic buffer-gas beam sources 

    Xiao, Di; Lancaster, David M.; Allen, Cameron H.; Taylor, Mckenzie J.; Lancaster, Thomas A.; Shaw, Gage; Hutzler, Nicholas R.; Weinstein, Jonathan D. (2019)
    Cryogenic buffer-gas beams are important sources of cold molecules. In this work we explore the use of a converging-diverging nozzle with a buffer-gas beam. We find that, under appropriate circumstances, the use of a nozzle ...
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    Shell stability and conditions analyzed using a new method of extracting shell areal density maps from spectrally resolved images of direct-drive inertial confinement fusion implosions 

    Johns, Heather M.; Mancini, Roberto C.; Nagayama, Taisuke; Mayes, Daniel C.; Tommasini, R.; Smalyuk, V. A.; Regan, S. P.; Delettrez, J. A. (2016)
    In warm target direct-drive inertial confinement fusion implosion experiments performed at the OMEGA laser facility, plastic micro-balloons doped with a titanium tracer layer in the shell and filled with deuterium gas were ...
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    Single photoionization of the Zn II ion in the photon energy range 17.5-90.0 eV: experiment and theory 

    Hinojosa, G.; Davis, V. T.; Covington, A. M.; Thompson, J. S.; Kilcoyne, A. L. D.; Antillon, A.; Hernandez, E. M.; Calabrese, D.; Morales-Mori, A.; Juarez, A. M.; Windelius, O.; McLaughlin, B. M. (2017)
    Measurements of the single-photoionization cross-section of Cu-like Zn+ ions are reported in the energy (wavelength) range 17.5 eV (708 angstrom) to 90 eV (138 angstrom). The measurements on this trans-Fe element were ...
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    Spatial-temporal variation of low-frequency earthquake bursts near Parkfield, California 

    Wu, Chunquan; Guyer, Robert A.; Shelly, David; Trugman, Daniel; Frank, William; Gomberg, Joan; Johnson, Paul A. (2015)
    Tectonic tremor (TT) and low-frequency earthquakes (LFEs) have been found in the deeper crust of various tectonic environments globally in the last decade. The spatial-temporal behaviour of LFEs provides insight into deep ...
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    Spectral line shapes of L-shell transitions in Ne-like iron 

    Mancini, Roberto C. (2016)
    Photon-energy-resolved large-scale opacity calculations employ Stark broadened spectral line shapes only to account for the contribution of K-shell line transitions. Detailed ion broadening effects are not considered for ...
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    Spin Entanglement Witness for Quantum Gravity 

    Bose, Sougato; Mazumdar, Anupam; Morley, Gavin W.; Ulbricht, Hendrik; Toros, Marko; Paternostro, Mauro; Geraci, Andrew A.; Barker, Peter F.; Kim, M. S.; Milburn, Gerard (2017)
    Understanding gravity in the framework of quantum mechanics is one of the great challenges in modern physics. However, the lack of empirical evidence has lead to a debate on whether gravity is a quantum entity. Despite ...
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    Study of ablation and implosion stages in wire arrays using coupled ultraviolet and X-ray probing diagnostics 

    Anderson, Andrew A.; Ivanov, Vladimir V.; Astanovitskiy, A. L.; Papp, Daniel; Wiewior, P. P.; Chalyy, O. (2015)
    Star and cylindrical wire arrays were studied using laser probing and X-ray radiography at the 1-MA Zebra pulse power generator at the University of Nevada, Reno. The Leopard laser provided backlighting, producing a laser ...
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    Study of fast electron generation using multi beam of LFEX-class laser 

    Hata, Masayasu; Sakagami, H.; Johzaki, Tomoyuki; Sentoku, Y.; Nagatomo, Hideo (2016)
    Fast Ignition Realization Experiment project phase-I (FIREX-I) is being performed at Institute of Laser Engineering, Osaka University. In this project, the four-beam bundled high-energy Petawatt laser (LFEX) is being ...