The PT Symmeter » Jon Links http://ptsymmetry.net PT Symmetry articles and information Wed, 24 Dec 2014 09:54:41 +0000 en hourly 1 http://wordpress.org/?v=3.0.4 BCS model with asymmetric pair scattering: a non-Hermitian, exactly solvable Hamiltonian exhibiting generalised exclusion statistics http://ptsymmetry.net/?p=1208&utm_source=rss&utm_medium=rss&utm_campaign=bcs-model-with-asymmetric-pair-scattering-a-non-hermitian-exactly-solvable-hamiltonian-exhibiting-generalised-exclusion-statistics http://ptsymmetry.net/?p=1208#comments Tue, 23 Apr 2013 11:32:27 +0000 dwh http://ptsymmetry.net/?p=1208 Jon Links, Amir Moghaddam, Yao-Zhong Zhang

We demonstrate the occurrence of free quasi-particle excitations obeying generalised exclusion statistics in a BCS model with asymmetric pair scattering. The results are derived from an exact solution of the Hamiltonian, which was obtained via the algebraic Bethe ansatz utilising the representation theory of an underlying Yangian algebra. The free quasi-particle excitations are associated to highest-weight states of the Yangian algebra, corresponding to a class of analytic solutions of the Bethe ansatz equations.

http://arxiv.org/abs/1304.5818
Exactly Solvable and Integrable Systems (nlin.SI); Superconductivity (cond-mat.supr-con); Mathematical Physics (math-ph)

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