Semiclassical spectrum tomography links classical phase-space structures to metastability, chaos, and quantum ergodicity in finite Bose-Hubbard rings and chains.
For this purpose, we inspect long trajectories that are launched either in the vicinity of the SP or somewhere else, away from the SP, but at the same energy
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Metastability, chaos and spectrum tomography for Bose-Hubbard rings and chains
Semiclassical spectrum tomography links classical phase-space structures to metastability, chaos, and quantum ergodicity in finite Bose-Hubbard rings and chains.