Browsing by Subject "theory"

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  • Correlation-function spectroscopy of inelastic lifetime in heavily doped GaAs heterostructures 
    Könemann, J.; König, P.; Schmidt, T.; McCann, E.; Fal’ko, V.I.; Haug, Rolf J. (College Park, MD : American Physical Society, 2001)
    Measurements of resonant tunneling through a localized impurity state are used to probe fluctuations in the local density of states of heavily doped GaAs. The measured differential conductance is analyzed in terms of ...
  • Dirac structures on nilmanifolds and coexistence of fluxes 
    Chatzistavrakidis, Athanasios; Jonke, Larisa; Lechtenfeld, Olaf (Amsterdam : Elsevier Science BV, 2014)
    We study some aspects of the generalized geometry of nilmanifolds and examine to which extent different types of fluxes can coexist on them. Nilmanifolds constitute a class of homogeneous spaces which are interesting in ...
  • Formation of surface color centers at differently coordinated sites: MgO/Ag(1,1,19) 
    Kramer, J.; Tegenkamp, Christoph; Pfnür, Herbert (College Park, MD : American Physical Society, 2003)
    In order to find criteria for discrimination between surface color centers at terraces and steps, and bulk color centers, the characteristic losses of these centers have been investigated by electron energy loss spectroscopy ...
  • Integrable anyon chains: From fusion rules to face models to effective field theories 
    Finch, Peter E.; Flohr, Michael; Frahm, Holger (Amsterdam : Elsevier Science BV, 2014)
    Starting from the fusion rules for the algebra SO(5)2we construct one-dimensional lattice models of interacting anyons with commuting transfer matrices of ‘interactions round the face’ (IRF) type. The con-served topological ...
  • Sigma-model limit of Yang–Mills instantons in higher dimensions 
    Deser, Andreas; Lechtenfeld, Olaf; Popov, Alexander D. (Amsterdam : Elsevier Science BV, 2015)
    We consider the Hermitian Yang–Mills (instanton) equations for connections on vector bundles over a 2n-dimensional Kähler manifold Xwhich is a product Y×Zof p-and q-dimensional Riemannian manifold Yand Zwith p+q=2n. We ...