The Horizons of Observability in PT-symmetric Four-site Quantum Lattices

One of the key merits of <em>PT</em>-symmetric (i.e., parity times time reversal symmetric) quantum Hamiltonians <em>H</em> lies in the existence of a horizon of the stability of the system. Mathematically speaking, this horizon is formed by the boundary of the domain <em&...

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Bibliographic Details
Main Author: M. Znojil
Format: Article
Language:English
Published: CTU Central Library 2011-01-01
Series:Acta Polytechnica
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/1420