Journal
EUROPEAN PHYSICAL JOURNAL D
Volume 60, Issue 2, Pages 257-261Publisher
SPRINGER
DOI: 10.1140/epjd/e2010-00243-0
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Spectral singularities such as exceptional points invoke specific physical effects. The present paper focuses upon the time dependent solutions of the Schrodinger equation. In a simple model it is demonstrated that depending on initial conditions within close proximity of exceptional points the time behaviour of the wave function displays characteristic features such as very fast decay or the opposite, i.e. very long life time. At the as point the wave function typically has a linear term in time besides the usual exponential behaviour.
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