The horizons of observability in PT-symmetric four-site quantum lattices
Quantum Physics
2012-01-16 v1 High Energy Physics - Theory
Mathematical Physics
math.MP
Abstract
The "Hermitizability" problem of quantum theory is explained, discussed and illustrated via the discrete-lattice cryptohermitian quantum graphs. In detail, the description of the domain of admissible parameters is provided for the "circular-model" three-parametric quantum Hamiltonian using periodic boundary conditions. It is emphasized that even in such an elementary system the weak- and strong-coupling subdomains of become, unexpectedly, non-empty and disconnected.
Cite
@article{arxiv.1103.4001,
title = {The horizons of observability in PT-symmetric four-site quantum lattices},
author = {Miloslav Znojil},
journal= {arXiv preprint arXiv:1103.4001},
year = {2012}
}
Comments
18 pp, 20 figures, contribution to the proceedings of the AAMP-VII meeting (http://gemma.ujf.cas.cz/~znojil/conf/micromeetsedm.html)