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Browsing Faculty Research Publications (Physics) by Title

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Browsing Faculty Research Publications (Physics) by Title

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  • Blume-Kohout, Robin; Croke, Sarah; Zwolak, Michael (Nature Publishing Group, 2013-05-14)
    Measurement of a quantum system - the process by which an observer gathers information about it - provides a link between the quantum and classical worlds. The nature of this process is the central issue for attempts to ...
  • Rams, Marek M.; Zwolak, Michael; Damski, Bogdan (Nature Publishing Group, 2012-09-13)
    We study an Ising chain undergoing a quantum phase transition in a quantum magnetic field. Such a field can be emulated by coupling the chain to a central spin initially in a superposition state. We show that - by adiaba ...
  • Dimitrova, V.; Draeseke, A.; Tate, J.; Yokoyama, T.; Clark, B. L.; Keszler, Douglas A. (American Institute of Physics, 1999-10-18)
    We demonstrate color shifting from the yellow to the red in the electroluminescence from (ZnGa)S:Mn films. We observe threshold voltages down to about 35 V, extremely low for such devices. We discuss the materials char ...
  • Riedel, C. Jess; Zurek, Wojciech H.; Zwolak, Michael (IOP Publishing Ltd and Deutsche Physikalische Gesellschaft, 2012-08-10)
    A state selected at random from the Hilbert space of a many-body system is overwhelmingly likely to exhibit highly non-classical correlations. For these typical states, half of the environment must be measured by an obse ...
  • Sallis, S.; Piper, L. F. J.; Francis, J.; Tate, J.; Hiramatsu, H.; Kamiya, T.; Hosono, H. (American Physical Society, 2012-02)
    The electronic structure of the oxychalcogenides LaCuOSe and BiCuOSe has been studied using O K-edge x-ray emission spectroscopy, x-ray absorption spectroscopy, and density functional theory, in order to examine the effe ...
  • Roberts, J. M.; Brown, Brandon; Tate, J.; Xi, X. X.; Mao, S. N. (The American Physical Society, 1995-06-01)
    We have investigated a second-order phase transition of the vortex lattice in thin-film Nd₁.₈₅Ce₀.₁₅CuO[subscript 4-y] from 1 mT to 1 T applied magnetic fields. The dc resistivity-current density data for each field exhi ...
  • Roberts, J. M.; Brown, Brandon; Hermann, B. A.; Tate, J. (The American Physical Society, 1994-03-01)
    See article for Abstract.
  • Escapa, Ignacio H.; Rothwell, Gar W.; Stockey, Ruth A.; Cuneo, N. Ruben (Botanical Society of America, Inc., 2012-06-01)
    Premise of the study: Seed cone morphology and anatomy reflect some of the most important changes in the phylogeny and evolutionary biology of conifers. Reexamination of the enigmatic Jurassic seed cone Pararaucaria pata ...
  • Vielma, J. M.; Schneider, G. (American Institute of Physics Publishing, 2013-11-07)
    A shell model for ferroelectric perovskites fitted to results of first-principles density functional theory (DFT) calculations is strongly affected by approximations made in the exchange-correlation functional within D ...
  • Michalakis, Spyridon; Zwolak, Justyna P. (Springer, 2013-09-01)
    We prove stability of the spectral gap for gapped, frustration-free Hamiltonians under general, quasi-local perturbations. We present a necessary and sufficient condition for stability, which we call Local Topological Qu ...
  • Kykyneshi, R.; Nielsen, B. C.; Tate, J.; Li, J.; Sleight, A. W. (American Institute of Physics, 2004-12-01)
    Transport and structural properties of Mg-doped and O-intercalated sintered powders and polycrystalline films of CuSc₁₋ₓMgₓO[subscript 2+y] are reported. Substitution of Mg for Sc systematically increases the p-type co ...
  • Purushothaman, Balaji; Parkin, Sean R.; Kendrick, Mark J.; David, Daniel; Ward, Jeremy W.; Yu, Liyang; Stingelin, Natalie; Jurchescu, Oana D.; Ostroverkhova, Oksana; Anthony, John E. (Royal Society of Chemistry, 2012-06-26)
    Acenes larger than pentacene are predicted to possess enticing electronic properties, but are insoluble and prone to rapid decomposition. Utilizing a combination of functionalization strategies, we present stable, soluti ...
  • Platt, A. D.; Kendrick, M. J.; Loth, M.; Anthony, J. E.; Ostroverkhova, O. (American Physical Society, 2011-12)
    We report on physical mechanisms behind the temperature-dependent optical absorption, photoluminescence (PL), and photoconductivity in spin-coated films of a functionalized anthradithiophene (ADT) derivative, ADT-triethy ...
  • Tomaino, J. L.; Jameson, A. D.; Lee, Yun-Shik; Khitrova, G.; Gibbs, H. M.; Klettke, A. C.; Kira, M.; Koch, S.W. (American Physical Society, 2012-06-29)
    Interactions of few-cycle terahertz pulses with the induced optical polarization in a quantum-well microcavity reveal that the lower and higher exciton-polariton modes together with the optically forbidden 2p-exciton sta ...
  • Paul, M. J.; Tomaino, J. L.; Kevek, J. W.; DeBorde, T.; Thompson, Z. J.; Minot, E. D.; Lee, Yun-Shik (American Institute of Physics, 2012-08-29)
    We investigate electron transport properties in large-area, single-layer graphene embedded in dielectric media, using free-space terahertz (THz) imaging and time-domain spectroscopy. Sandwiched between a thin polymethyl ...
  • Lee, Yun-Shik; Amer, N.; Hurlbut, Walter C. (American Institute of Physics, 2003-01-13)
    We demonstrate a technique for terahertz pulse shaping via optical rectification in the pre-engineered domain structure of poled lithium niobate crystals. The terahertz wave forms coincide with the crystal domain struc ...
  • Paul, M. J.; Kuhta, N. A.; Tomaino, J. L.; Jameson, A. D.; Maizy, L. P.; Sharf, T.; Rupesinghe, N. L.; Teo, K. B. K.; Inampudi, S.; Podolskiy, V. A.; Minot, E. D.; Lee, Yun-Shik (American Institute of Physics, 2012-09-10)
    We demonstrate time-resolved terahertz transmission ellipsometry of vertically aligned multi-walled carbon nanotubes. The angle-resolved transmission measurements reveal anisotropic characteristics of the terahertz elect ...
  • Vodopyanov, K. L.; Fejer, M. M.; Yu, X.; Harris, J. S.; Lee, Yun-Shik; Hurlbut, Walter C.; Kozlov, V. G.; Bliss, D.; Lynch, C. (American Institute of Physics, 2006-10-04)
    The authors demonstrate an efficient room temperature source of terahertz radiation using femtosecond laser pulses as a pump and GaAs structures with periodically inverted crystalline orientation, such as diffusion-bon ...
  • Wiedle, River A.; Warner, Mark; Tate, Janet; Plassmeyer, Paul N.; Page, Catherine J. (Elsevier, 2013-12)
    The thermal conductivity, measured by the 3ω method, of amorphous films of Al₂P₁.₂O₆ (AlPO) deposited on Si substrates by an all-aqueous spin-coating technique is 0.93(3) Wm⁻¹K⁻¹. The thermal conductivity of a degenera ...
  • Daun, N.; Sleight, A. W.; Jayaraj, M. K.; Tate, J. (American Institute of Physics, 2000-08-28)
    Transparent films of CuScO₂₊ₓ have been prepared which show p-type electrical conductivity. The temperature dependence of the conductivity indicates semiconducting behavior with an apparent room temperature activation ...

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