| non hermitian degeneracies ate known as exceptional points EP in the spectrum where at least two eigestates coalesce.
Even being near this situation there are unusual phrnomena assiciated with the EP. As for example the developments of electrical and optical switches. The EP science becomes a multidiciplinar sciience Thd first book ever writen on NHQM from foundations to applications is in 2011 by Cambridge University Press by me The first book evdr writtrn on non hermitian quantum.mechanicx from foundations to applications wss publlished in 2011 by Cambridge University Press by me. |
