Asymptotic lattices, good labellings, and the rotation number for quantum integrable systems
Asymptotic lattices, good labellings, and the rotation number for quantum integrable systems
<p style='text-indent:20px;'>This article introduces the notion of good labellings for asymptotic lattices in order to study joint spectra of quantum integrable systems from the point of view of inverse spectral theory. As an application, we consider a new spectral quantity for a quantum integrable system, the quantum rotation number. In …