The PT Symmeter » Yorick Hardy 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 Exceptional Points, Nonnormal Matrices, Hierarchy of Spin Matrices and an Eigenvalue Problem http://ptsymmetry.net/?p=1114&utm_source=rss&utm_medium=rss&utm_campaign=exceptional-points-nonnormal-matrices-hierarchy-of-spin-matrices-and-an-eigenvalue-problem http://ptsymmetry.net/?p=1114#comments Tue, 15 Jan 2013 08:06:43 +0000 dwh http://ptsymmetry.net/?p=1114 Willi-Hans Steeb, Yorick Hardy

Exceptional points are studied for non-hermitian Hamilton operators given by a hierarchy of spin operators.

http://arxiv.org/abs/1301.2900
Mathematical Physics (math-ph); Quantum Physics (quant-ph)

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