Browsing by Subject "Integrable Hierarchies"

Browsing by Subject "Integrable Hierarchies"

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  • Correa, F.; Lechtenfeld, O. (Heidelberg : Springer Verlag, 2019)
    Calogero-Sutherland models of N identical particles on a circle are deformed away from hermiticity but retaining a PT symmetry. The interaction potential gets completely regularized, which adds to the energy spectrum an ...
  • Correa, Francisco; Fring, Andreas (Heidelberg : Springer Verlag, 2016)
    We report complex PT-symmetric multi-soliton solutions to the Korteweg de-Vries equation that asymptotically contain one-soliton solutions, with each of them possessing the same amount of finite real energy. We demonstrate ...
  • Correa, Francisco; Lechtenfeld, Olaf (New York : Springer, 2015)
    The spherical reduction of the rational Calogero model (of type A n−1 and after removing the center of mass) is considered as a maximally superintegrable quantum system, which describes a particle on the (n−2)-sphere subject ...
  • Doikou, Anastasia; Karaiskos, Nikos (New York, NY : Springer International Publishing, 2013)
    We consider the Heisenberg spin chain in the presence of integrable spin defects. Using the Bethe ansatz methodology, we extract the associated transmission amplitudes, that describe the interaction between the particle-like ...