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Open Quantum Systems Decoherence Quantum Simulation

Metastability, chaos and spectrum tomography for Bose-Hubbard rings and chains

arXiv
Authors: Rajat, Doron Cohen

Year

2026

Paper ID

35789

Status

Preprint

Abstract Read

~2 min

Abstract Words

82

Citations

N/A

Abstract

We analyze the metastability of Bose-Hubbard condensates for finite-size one-dimensional ring lattices and open chains, using a semiclassical tomographic perspective that emphasizes the relation of the many-body spectrum to the underlying classical phase-space structures. This constitutes an arena for inspection of quantum ergodicity and localization, in far-from-equilibrium scenarios of experimental interest. Both local aspects (via Bogoliubov analysis) and global aspects (by inspecting the mixed regular-chaotic dynamics) are addressed. We also clarify how chaos is diminished in the limit of the Gross-Pitaevskii equation.

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  • We analyze the metastability of Bose-Hubbard condensates for finite-size one-dimensional ring lattices and open chains, using a semiclassical tomographic perspective that...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2603.23109 [2] arXiv https://arxiv.org/abs/2603.23109 [3] Publisher https://arxiv.org/abs/2603.23109

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