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The origin of the period- quasi-breathing in disk-shaped Gross-Pitaevskii breathers
J. Torrents, V. Dunjko, M. Gonchenko +2
We address the origins of the quasi-periodic breathing observed in [Phys. Rev.\ X vol. 9, 021035 (2019)] in disk-shaped harmonically trapped two-dimensional Bose condensates, where…
Quantum Chirikov criterion: Two particles in a box as a toy model for a quantum gas
Dmitry Yampolsky, N. L. Harshman, Vanja Dunjko +2
We consider a toy model for emergence of chaos in a quantum many-body short-range-interacting system: two one-dimensional hard-core particles in a box, with a small mass defect as…
Triangular Gross-Pitaevskii breathers and Damski-Chandrasekhar shock waves
M. Olshanii, D. Deshommes, J. Torrents +3
The recently proposed map [arXiv:2011.01415] between the hydrodynamic equations governing the two-dimensional triangular cold-bosonic breathers [Phys. Rev. X 9, 021035 (2019)] and…