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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Exceptional Points, Nonnormal Matrices, Hierarchy of Spin Matrices and an Eigenvalue Problem
Jan 15, ’13
8:06 AM