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• "Spin polarizations and spin Hall currents in a two-dimensional electron gas with magnetic impurities", Gorini, Schwab, Dzierzawa, Raimondi, 2008

  Publikation

  We consider a two-dimensional electron gas in the presence of Rashba spin-orbit coupling, and study the effects of magnetic s-wave and long-range...

  Publikation auf epub.uni-regensburg.de: "Spin polarizations and spin Hall currents in a two-dimensional electron gas with magnetic impurities" (externer Link, öffnet neues Fenster)

• "Three-tangle for mixtures of generalized GHZ and generalized W states", Eltschka, Osterloh, Siewert, Uhlmann, 2008

  Publikation

  We give a complete solution for the three-tangle of mixed three-qubit states composed of a generalized Greenberger Horne Zeilinger (GHZ) state, {\it...

  Publikation auf epub.uni-regensburg.de: "Three-tangle for mixtures of generalized GHZ and generalized W states" (externer Link, öffnet neues Fenster)

• "Fluctuation-dissipation theorem for the microcanonical ensemble", Bonanca, 2008

  Publikation

  A derivation of the fluctuation-dissipation theorem for the microcanonical ensemble is presented using linear response theory. The theorem is stated...

  Publikation auf epub.uni-regensburg.de: "Fluctuation-dissipation theorem for the microcanonical ensemble" (externer Link, öffnet neues Fenster)

• "Trace formula for dielectric cavities: I. General properties", Bogomolny, Dubertrand, Schmit, 2008

  Publikation

  The construction of the trace formula for open dielectric cavities is examined in detail. Using the Krein formula it is shown that the sum over cavity...

  Publikation auf epub.uni-regensburg.de: "Trace formula for dielectric cavities: I. General properties" (externer Link, öffnet neues Fenster)

• "Theory of the valley-valve effect in graphene nanoribbons", Akhmerov, Bardarson, Rycerz, Beenakker, 2008

  Publikation

  Physical Review B (PRB) 1550-235X,1098-0121

  Publikation auf epub.uni-regensburg.de: "Theory of the valley-valve effect in graphene nanoribbons" (externer Link, öffnet neues Fenster)

• "Diffusion and localization in carbon nanotubes and graphene nanoribbons", Nemec, Richter, Cuniberti, 2008

  Publikation

  We study transport length scales in carbon nanotubes and graphene ribbons under the influence of Anderson disorder. We present generalized analytical...

  Publikation auf epub.uni-regensburg.de: "Diffusion and localization in carbon nanotubes and graphene nanoribbons" (externer Link, öffnet neues Fenster)

• "Spin Currents in Rough Graphene Nanoribbons: Universal Fluctuations and Spin Injection", Wimmer, Adagideli, Berber, Tomanek, Richter, 2008

  Publikation

  We investigate spin conductance in zigzag graphene nanoribbons and propose a spin injection mechanism based only on graphitic nanostructures. We find...

  Publikation auf epub.uni-regensburg.de: "Spin Currents in Rough Graphene Nanoribbons: Universal Fluctuations and Spin Injection" (externer Link, öffnet neues Fenster)

• "Bardeen-Cooper-Schrieffer Theory of Finite-Size Superconducting Metallic Grains", Garcia-Garcia, Urbina, Yuzbashyan, Richter, Altshuler, 2008

  Publikation

  We study finite-size effects in superconducting metallic grains and determine the BCS order parameter and the low energy excitation spectrum in terms...

  Publikation auf epub.uni-regensburg.de: "Bardeen-Cooper-Schrieffer Theory of Finite-Size Superconducting Metallic Grains" (externer Link, öffnet neues Fenster)

• "Spin-polarized tunneling through randomly transparent magnetic junctions: Reentrant magnetoresistance approaching the Jullière limit", Tkachov, Richter, 2008

  Publikation

  Electron conductance in planar magnetic tunnel junctions with long-range barrier disorder is studied within Glauber-eikonal approximation enabling...

  Publikation auf epub.uni-regensburg.de: "Spin-polarized tunneling through randomly transparent magnetic junctions: Reentrant magnetoresistance approaching the Jullière limit" (externer Link, öffnet neues Fenster)

• "Theorie und Numerik von nicht-linearen Kumulanten höherer Ordnung", Malorny, 2008

  Publikation

  Die Temperaturabhängigkeit des Debye-Waller-Faktors wie er in Beugungsexperimenten einerseits und in EXAFS-Experimenten andererseits auftritt, wurde...

  Publikation auf epub.uni-regensburg.de: "Theorie und Numerik von nicht-linearen Kumulanten höherer Ordnung" (externer Link, öffnet neues Fenster)