Abstract
A summary, with references and additional comments, of a talk delivered at the Second International Workshop on Pseudohermitian Hamiltonians in Quantum Physics (Prague, 14-16 June 2004). After explaining some general features of nonhermitian degeneracies (‘exceptional points’), several applications are outlined: to multiple reflections in a pile of plates, linewidths of unstable lasers, atom diffraction by light, and crystal optics.
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Berry, M. Physics of Nonhermitian Degeneracies. Czechoslovak Journal of Physics 54, 1039–1047 (2004). https://doi.org/10.1023/B:CJOP.0000044002.05657.04
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DOI: https://doi.org/10.1023/B:CJOP.0000044002.05657.04