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PreprintarXiv licencearXiv

Quantum Phases and Structural Transitions of Bosons in Bubble-Shaped Confinements

  • Fabio Cinti
  • Gabriele Costa
  • Giuseppe Pellicane
  • Santi Prestipino
  • Matteo Ciardi
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Abstract

We investigate the structural properties and superfluid behavior of soft-core bosons confined in a spherical bubble trap at large particle numbers (N ≤ 1800). Using Path Integral Monte Carlo simulations with worm algorithm sampling in continuous space, we show that increasing N drives a sequence of layering transitions: beyond the established bilayer supersolid, a third concentric layer of clusters emerges at N ≈ 1800. By analyzing the distribution of permutation cycles distribution, we demonstrate that a finite superfluid fraction (fs ≈ 10%) persists even in this multi-layer regime. These findings clarify the role of particle number in driving layer formation on curved manifolds, offering a concrete guide for future experiments with bubble-trapped bosons.

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Cite

BibTeXRIS
BibTeX
@misc{cinti2026quantum,
  title = {{Quantum Phases and Structural Transitions of Bosons in Bubble-Shaped Confinements}},
  author = {Fabio Cinti and Gabriele Costa and Giuseppe Pellicane and Santi Prestipino and Matteo Ciardi},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.30381},
  eprint = {2610.30381},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.30381},
}
RIS
TY  - UNPB
TI  - Quantum Phases and Structural Transitions of Bosons in Bubble-Shaped Confinements
AU  - Fabio Cinti
AU  - Gabriele Costa
AU  - Giuseppe Pellicane
AU  - Santi Prestipino
AU  - Matteo Ciardi
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2610.30381
UR  - https://arxiv.org/abs/2610.30381
AB  - We investigate the structural properties and superfluid behavior of soft-core bosons confined in a spherical bubble trap at large particle numbers (N ≤ 1800). Using Path Integral Monte Carlo simulations with worm algorithm sampling in continuous space, we show that increasing N drives a sequence of layering transitions: beyond the established bilayer supersolid, a third concentric layer of clusters emerges at N ≈ 1800. By analyzing the distribution of permutation cycles distribution, we demonstrate that a finite superfluid fraction (f_s ≈ 10%) persists even in this multi-layer regime. These findings clarify the role of particle number in driving layer formation on curved manifolds, offering a concrete guide for future experiments with bubble-trapped bosons.
ER  -