Now showing items 1380-1399 of 2122

    • Quantitative Analysis of α-Synuclein Solubility in Living Cells Using Split GFP Complementation 

      Kothawala, Ahmed; Kilpatrick, Kiri; Novoa, Jose Andres; Segatori, Laura (2012)
      Presently incurable, Parkinson's disease (PD) is the most common neurodegenerative movement disorder and affects 1% of the population over 60 years of age. The hallmarks of PD pathogenesis are the loss of dopaminergic ...
    • Quantum critical dynamics for a prototype class of insulating antiferromagnets 

      Wu, Jianda; Yang, Wang; Wu, Congjun; Si, Qimiao (2018)
      Quantum criticality is a fundamental organizing principle for studying strongly correlated systems. Nevertheless, understanding quantum critical dynamics at nonzero temperatures is a major challenge of condensed-matter ...
    • Quantum critical point in the Sc-doped itinerant antiferromagnet TiAu 

      Svanidze, E.; Besara, T.; Wang, J.K.; Geiger, D.; Prochaska, L.; Santiago, J.M.; Lynn, J.W.; Paschen, S.; Siegrist, T.; Morosan, E. (2017)
      We present an experimental realization of a quantum critical point in an itinerant antiferromagnet composed of nonmagnetic constituents, TiAu. By partially substituting Ti with Sc in Ti 1 − x Sc x Au , a doping ...
    • Quantum criticality in the pseudogap Bose-Fermi Anderson and Kondo models: Interplay between fermion- and boson-induced Kondo destruction 

      Pixley, J.H.; Kirchner, Stefan; Ingersent, Kevin; Si, Qimiao (2013)
      We address the phenomenon of critical Kondo destruction in pseudogap Bose-Fermi Anderson and Kondo quantum impurity models. These models describe a localized level coupled both to a fermionic bath having a density of states ...
    • Quantum effects and nonlocality in strongly coupled plasmonic nanowire dimers 

      Teperik, Tatiana V.; Nordlander, Peter; Aizpurua, Javier; Borisov, Andrei G. (2013)
      Using a fully quantum mechanical approach we study the optical response of a strongly coupled metallic nanowire dimer for variable separation widths of the junction between the nanowires. The translational invariance of ...
    • Quantum jumps via spontaneous Raman scattering 

      Hulet, Randall G.; Wineland, D.J. (1987)
      A single laser, which is used to induce and detect spontaneous Raman transitions, can be used to observe quantum jumps in a single atom. The population dynamics of a particular system, consisting of two S1/22 ground-state ...
    • Quantum mechanical effects in plasmonic structures with subnanometre gaps 

      Zhu, Wenqi; Esteban, Ruben; Borisov, Andrei G.; Baumberg, Jeremy J.; Nordlander, Peter; Lezec, Henri J.; Aizpurua, Javier; Crozier, Kenneth B. (2016)
      Metallic structures with nanogap features have proven highly effective as building blocks for plasmonic systems, as they can provide a wide tuning range of operating frequencies and large near-field enhancements. Recent ...
    • Quantum Multicriticality near the Dirac-Semimetal to Band-Insulator Critical Point in Two Dimensions: A Controlled Ascent from One Dimension 

      Roy, Bitan; Foster, Matthew S. (2018)
      We compute the effects of generic short-range interactions on gapless electrons residing at the quantum critical point separating a two-dimensional Dirac semimetal and a symmetry-preserving band insulator. The electronic ...
    • Quantum Phases of the Shastry-Sutherland Kondo Lattice: Implications for the Global Phase Diagram of Heavy-Fermion Metals 

      Pixley, J.H.; Yu, Rong; Si, Qimiao (2014)
      Considerable recent theoretical and experimental effort has been devoted to the study of quantum criticality and novel phases of antiferromagnetic heavy-fermion metals. In particular, quantum phase transitions have been ...
    • Quantum plasmonics: Symmetry-dependent plasmon-molecule coupling and quantized photoconductances 

      Song, Peng; Meng, Sheng; Nordlander, Peter; Gao, Shiwu (2012)
      We investigate photoinduced electron transport through nanoparticle dimers connected by linear and ringlike molecules. The two model junctions exhibit similar absorption but distinct photoconductance. The linear-chain junction ...
    • Quantum quench phase diagrams of an s-wave BCS-BEC condensate 

      Yuzbashyan, E.A.; Dzero, M.; Gurarie, V.; Foster, M.S. (2015)
      We study the dynamic response of an s-wave BCS-BEC (atomic-molecular) condensate to detuning quenches within the two-channel model beyond the weak-coupling BCS limit. At long times after the quench, the condensate ends up ...
    • QuantWorm: A Comprehensive Software Package for Caenorhabditis elegans Phenotypic Assays 

      Jung, Sang-Kyu; Aleman-Meza, Boanerges; Riepe, Celeste; Zhong, Weiwei; Hendricks, Michael (2014)
      Phenotypic assays are crucial in genetics; however, traditional methods that rely on human observation are unsuitable for quantitative, large-scale experiments. Furthermore, there is an increasing need for comprehensive ...
    • Quasiparticle coupled cluster theory for pairing interactions 

      Henderson, Thomas M.; Scuseria, Gustavo E.; Dukelsky, Jorge; Signoracci, Angelo; Duguet, Thomas (2014)
      We present an extension of the pair coupled cluster doubles (p-CCD) method to quasiparticles and apply it to the attractive pairing Hamiltonian. Near the transition point where number symmetry gets spontaneously broken, ...
    • Quasispecies theory for evolution of modularity 

      Park, Jeong-Man; Niestemski, Liang Ren; Deem, Michael W. (2015)
      Biological systems are modular, and this modularity evolves over time and in different environments. A number of observations have been made of increased modularity in biological systems under increased environmental ...
    • Quench-Induced Floquet Topologicalᅠp-Wave Superfluids 

      Foster, Matthew S.; Gurarie, Victor; Dzero, Maxim; Yuzbashyan, Emil A. (2014)
      Ultracold atomic gases in two dimensions tuned close to a p-wave Feshbach resonance were expected to exhibit topological superfluidity, but these were found to be experimentally unstable. We show that one can induce a ...
    • RACIPE: a computational tool for modeling gene regulatory circuits using randomization 

      Huang, Bin; Jia, Dongya; Feng, Jingchen; Levine, Herbert; Onuchic, José N.; Lu, Mingyang (2018)
      BACKGROUND: One of the major challenges in traditional mathematical modeling of gene regulatory circuits is the insufficient knowledge of kinetic parameters. These parameters are often inferred from existing experimental ...
    • Radiation testing of electronics for the CMS endcap muon system 

      Bylsma, B.; Cady, D.; Celik, A.; Durkin, L.S.; Gilmore, J.; Haley, J.; Khotilovich, V.; Lakdawala, S.; Liu, J.; Matveev, M.; Padley, B.P.; Roberts, J.; Roe, J.; Safonov, A.; Suarez, I.; Wood, D.; Zawisza, I. (2013)
      The electronics used in the data readout and triggering system for the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) particle accelerator at CERN are exposed to high radiation levels. This ...
    • Radiative Decay Rates in Hg+ from Observations of Quantum Jumps in a Single Ion 

      Itano, Wayne M.; Bergquist, J.C.; Hulet, Randall G.; Wineland, D.J. (1987)
      Radiative decay rates connecting the lowest four energy levels of Hg+198 have been derived solely from an analysis of the fluctuations (quantum jumps) of the laser-induced fluorescence of the 194-nm first resonance transition ...
    • Radiative lifetime of the 2P state of lithium 

      McAlexander, W.I.; Abraham, E.R.I.; Hulet, R.G. (1996)
      We determine the radial dipole moment between the 2S and 2P states of atomic lithium by analyzing the long-range vibrational eigenenergies of the singly excited diatomic molecule. The result can be expressed in terms of ...
    • Raman scattering study of NaFe0.53Cu0.47As 

      Zhang, W.-L.; Song, Y.; Wang, W.-Y.; Cao, C.-D.; Dai, P.-C.; Jin, C.-Q.; Blumberg, G. (2018)
      We use polarization-resolved Raman scattering to study lattice dynamics in NaFe0.53Cu0.47As single crystals. We identify four A1g phonon modes, at 126, 172, 183, and 197 cm−1, and four B3g phonon modes at 101, 139, 173, ...