Instabilities, nonhermiticity and exceptional points in the cranking model
Quantum Physics
2007-09-27 v1
Abstract
A cranking harmonic oscillator model, widely used for the physics of fast rotating nuclei and Bose-Einstein condensates, is re-investigated in the context of PT-symmetry. The instability points of the model are identified as exceptional points. It is argued that - even though the Hamiltonian appears hermitian at first glance - it actually is not hermitian within the region of instability.
Keywords
Cite
@article{arxiv.0709.4105,
title = {Instabilities, nonhermiticity and exceptional points in the cranking model},
author = {W. D. Heiss and R. G. Nazmitdinov},
journal= {arXiv preprint arXiv:0709.4105},
year = {2007}
}
Comments
4 pages, 1 figure