Auflistung nach Autor/in "73a8618a-e38f-45c1-bfa6-975e9189abd8"

Auflistung nach Autor/in "73a8618a-e38f-45c1-bfa6-975e9189abd8"

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  • Anderson Localization for Electric Quantum Walks and Skew-Shift CMV Matrices 
    Cedzich, C.; Werner, A.H. (Berlin ; Heidelberg : Springer, 2021)
    We consider the spectral and dynamical properties of one-dimensional quantum walks placed into homogenous electric fields according to a discrete version of the minimal coupling principle. We show that for all irrational ...
  • Complete homotopy invariants for translation invariant symmetric quantum walks on a chain 
    Cedzich, C.; Geib, T.; Stahl, C.; Velázquez, L.; Werner, A.H.; Werner, R.F. (Wien : Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften, 2018)
    We provide a classification of translation invariant one-dimensional quantum walks with respect to continuous deformations preserving unitarity, locality, translation invariance, a gap condition, and some symmetry of the ...
  • Propagation of Quantum Walks in Electric Fields 
    Cedzich, C.; Rybár, T.; Werner, A. H.; Alberti, A.; Genske, M.; Werner, R.F. (College Park, MD : American Physical Society, 2013)
    We study one-dimensional quantum walks in a homogenous electric field. The field is given by a phase which depends linearly on position and is applied after each step. The long time propagation properties of this system, ...
  • Quantum Walks with Nonorthogonal Position States 
    Matjeschk, R.; Ahlbrecht, Andre; Enderlein, M.; Cedzich, C.; Werner, A.H.; Keyl, M.; Schaetz, T.; Werner, R.F. (College Park, MD : American Physical Society, 2012)
    Quantum walks have by now been realized in a large variety of different physical settings. In some of these, particularly with trapped ions, the walk is implemented in phase space, where the corresponding position states ...
  • Quantum Walks: Schur Functions Meet Symmetry Protected Topological Phases 
    Cedzich, C.; Geib, T.; Grünbaum, F.A.; Velázquez, L.; Werner, A.H.; Werner, R.F. (Berlin ; Heidelberg : Springer, 2021)
    This paper uncovers and exploits a link between a central object in harmonic analysis, the so-called Schur functions, and the very hot topic of symmetry protected topological phases of quantum matter. This connection is ...