Conditional observability
arXiv:0704.3812 · doi:10.1016/j.physletb.2007.05.054
Abstract
For a quantum Hamiltonian H =H(p) the observability of the energies E may be robust (whenever all E are real at all p) or, otherwise, conditional. Using a pseudo-Hermitian family of N-state chain models H we discuss some generic properties of conditionally observable spectra.
21 pp incl. 10 fig
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