Lee-Huang-Yang dynamics emergent from a direct Wigner representation
King Lun Ng; Maciej Bartłomiej Kruk; Piotr Deuar · 2026 · arXiv
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Abstract (excerpt)
We demonstrate how the beyond-mean-field Lee-Huang-Yang (LHY) corrections and its related physics can be naturally incorporated into the representation of an ultracold Bose gas using the truncated Wigner approach without invoking effective energy terms or local density assumptions. By generating a Bogoliubov ground-state representation with appropriately tailored bare interaction strength $g_0$ and condensate density $n_0$, the expected initial energy and densities are obtained while retaining access to quantum effects beyond the reach of the extended Gross-Pitaevskii equation (EGPE) formulati
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Metadata source: arXiv