Auflistung Fakultät für Mathematik und Physik nach Titel

Auflistung Fakultät für Mathematik und Physik nach Titel

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  • Supersymmetric noncommutative solitons 
    Lechtenfeld, Olaf (Bristol : IOP Publishing Ltd., 2008)
    I consider a supersymmetric Bogomolny-type model in 2+1 dimensions originating from topological string theory. By a gauge fixing this model is reduced to a supersymmetric U(n) chiral model with a Wess-Zumino-Witten-type ...
  • Supertwistors and cubic string field theory for open N=2 strings 
    Lechtenfeld, Olaf; Popov, Alexander D. (Amsterdam : Elsevier, 2004)
    The known Lorentz invariant string field theory for open N = 2 strings is combined with a generalization of the twistor description of anti-self-dual (super-)Yang-Mills theories. We introduce a Chem-Simons-type Lagrangian ...
  • Suppressing ghost beams: Backlink options for LISA 
    Isleif, Katharina-Sophie; Gerberding, Oliver; Penkert, D.; Fitzsimons, E.; Ward, H.; Robertson, D.; Livas, J.; Mueller, G.; Reiche, J.; Heinzel, Gerhard; Danzmann, Karsten (Bristol : Institute of Physics Publishing, 2017)
    In this article we discuss possible design options for the optical phase reference system, the so called backlink, between two moving optical benches in a LISA satellite. The candidates are based on two approaches: Fiber ...
  • Suppression of decoherence in a graphene monolayer ring 
    Smirnov, D.; Rode, J.C.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2014)
    The influence of high magnetic fields on coherent transport is investigated. A monolayer graphene quantum ring is fabricated and the Aharonov-Bohm effect is observed. For increased magnitude of the magnetic field, higher ...
  • Supressing loss channels in the bulk and at the surface of crystalline silicon solar cells 
    Zielke, Dimitri (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2016)
    [no abstract]
  • Surface passivation of crystalline silicon solar cells by amorphous silicon films 
    Plagwitz, Heiko (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2007)
    [no abstract]
  • Surface state conductivity in epitaxially grown Bi1-xSbx(111) films 
    Koch, Julian; Kröger, Philipp; Pfnür, Herbert; Tegenkamp, Christoph (Bristol : Institute of Physics Publishing, 2016)
    Topologically non-trivial surface states were reported first on ${\mathrm{Bi}}_{1-x}$Sb x bulk crystals. In this study we present transport measurements performed on thin ${\mathrm{Bi}}_{1-x}$Sb x -films (up to 24 nm ...
  • A surrogate model for computational homogenization of elastostatics at finite strain using high-dimensional model representation-based neural network 
    Minh Nguyen‐Thanh, Vien; Trong Khiem Nguyen, Lu; Rabczuk, Timon; Zhuang, Xiaoying (Chichester [u.a.] : Wiley, 2020)
    We propose a surrogate model for two-scale computational homogenization of elastostatics at finite strains. The macroscopic constitutive law is made numerically available via an explicit formulation of the associated ...
  • The suspension systems of the interferometric gravitational-wave detector GEO 600 
    Goßler, Stefan (Hannover : Universität, 2004)
    [no abstract]
  • Switchable nanometer contacts: Ultrathin Ag nanostructures on Si(100) 
    Gardinowski, G.; Schmeidel, J.; Pfnür, Herbert; Block, T.; Tegenkamp, Christoph (College Park, MD : American Institute of Physics, 2006)
    The fabrication and characterization of metallic nanometer-sized gaps suitable for conductivity measurements of single molecules were studied. Controlled gap formation by electromigration (EM) is demonstrated in contiguous ...
  • Switching between one and two dimensions: Conductivity of Pb-induced chain structures on Si(557) 
    Tegenkamp, Christoph; Kallassy, Z.; Pfnür, Herbert; Günter, H.-L.; Zielasek, V.; Henzler, M. (College Park, MD : American Physical Society, 2005)
    We show in a combined study of four-point conductance measurement and tunneling microscopy that surface state conductance induced by one monolayer of Pb on Si(557) can be quasi one dimensional with conductivity values close ...
  • Symmetrieabhängige Frequenzverschiebungen in Atomuhren 
    Will, Johannes (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2012)
    [no abstract]
  • Symmetrien des N=2 Strings 
    Jünemann, Klaus (Hannover : Universität, 1999)
    [no abstract]
  • Symmetry Breaking and Strong Persistent Plasma Currents via Resonant Destabilization of Atoms 
    Brée, C.; Hofmann, M.; Demircan, A.; Morgner, Uwe; Kosareva, O.; Savel'Ev, A.; Husakou, A.; Ivanov, M.; Babushkin, I. (American Physical Society, 2017)
    The ionization rate of an atom in a strong optical field can be resonantly enhanced by the presence of long-living atomic levels (so-called Freeman resonances). This process is most prominent in the multiphoton ionization ...
  • Symmetry of steady deep-water waves with vorticity 
    Constantin, Adrian; Escher, Joachim (Cambridge : Cambridge University Press, 2004)
    For a large class of vorticities we prove that a steady periodic deep-water wave must be symmetric if its profile is monotone between crests and troughs. © 2004 Cambridge University Press.
  • Symmetry of steady periodic surface water waves with vorticity 
    Constantin, Adrian; Escher, Joachim (Cambridge : Cambridge University Press, 2004)
    For large classes of vorticities we prove that a steady periodic gravity water wave with a monotonic profile between crests and troughs must be symmetric. The analysis uses sharp maximum principles for elliptic partial ...
  • Symmetry-broken states in a system of interacting bosons on a two-leg ladder with a uniform Abelian gauge field 
    Greschner, Sebastian; Piraud, M.; Heidrich-Meisner, F.; McCulloch, I.P.; Schollwöck, U.; Vekua, T. (College Park, MD : American Physical Society, 2016)
    We study the quantum phases of bosons with repulsive contact interactions on a two-leg ladder in the presence of a uniform Abelian gauge field. The model realizes many interesting states, including Meissner phases, vortex ...
  • Sympathetic cooling of a trapped proton mediated by an LC circuit 
    Bohman, M.; Grunhofer, V.; Smorra, C.; Wiesinger, M.; Will, C.; Borchert, M.J.; Devlin, J.A.; Erlewein, S.; Fleck, M.; Gavranovic, S.; Harrington, J.; Latacz, B.; Mooser, A.; Popper, D.; Wursten, E.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J.; Ulmer, S. (London [u.a.] : Nature Publ. Group, 2021)
    Efficient cooling of trapped charged particles is essential to many fundamental physics experiments1,2, to high-precision metrology3,4 and to quantum technology5,6. Until now, sympathetic cooling has required close-range ...
  • Sympathetic cooling of mixed-species two-ion crystals for precision spectroscopy 
    Wübbena, Jannes B.; Amairi, Sana; Mandel, Olaf; Schmidt, Piet O. (College Park, MD : American Physical Society, 2012)
    Sympathetic cooling of trapped ions has become an indispensable tool for quantum-information processing and precision spectroscopy. In the simplest situation a single Doppler-cooled ion sympathetically cools another ion ...
  • Sympathetic cooling schemes for separately trapped ions coupled via image currents 
    Will, C.; Bohman, M.; Driscoll, T.; Wiesinger, M.; Abbass, F.; Borchert, M.J.; Devlin, J.A.; Erlewein, S.; Fleck, M.; Latacz, B.; Moller, R.; Mooser, A.; Popper, D.; Wursten, E.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J.; Smorra, C.; Ulmer, S. ([Bad Honnef] : Dt. Physikalische Ges., 2022)
    Cooling of particles to mK-temperatures is essential for a variety of experiments with trapped charged particles. However, many species of interest lack suitable electronic transitions for direct laser cooling. We study ...

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