Vorticity-Crystalline Order Coupling in Supersolids: Excitations and Re-entrant Phases
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908758833102848 |
|---|---|
| author | Schubert, Malte Mukherjee, Koushik Stürmer, Philipp Reimann, Stephanie |
| author_facet | Schubert, Malte Mukherjee, Koushik Stürmer, Philipp Reimann, Stephanie |
| contents | Rotation is a natural tool in ultracold gases to break time-reversal symmetry, yet its impact on the collective excitations of supersolids remains largely unexplored. We show theoretically that tuning the rotation frequency, rather than the interparticle interactions, can trigger the superfluid-to-supersolid transition in Bose-Einstein condensates (dBECs). Computing excitation spectra in the presence of vortices and persistent currents, we uncover a vortex-driven de-softening mechanism whereby quantized vorticity elevates the gapless Goldstone mode to a finite-energy roton, restoring superfluidity. This effect results in re-entrant supersolid phases as a function of rotation frequency, revealing a fundamental coupling between topological defects and crystalline order. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_05846 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Vorticity-Crystalline Order Coupling in Supersolids: Excitations and Re-entrant Phases Schubert, Malte Mukherjee, Koushik Stürmer, Philipp Reimann, Stephanie Quantum Gases Atomic Physics Rotation is a natural tool in ultracold gases to break time-reversal symmetry, yet its impact on the collective excitations of supersolids remains largely unexplored. We show theoretically that tuning the rotation frequency, rather than the interparticle interactions, can trigger the superfluid-to-supersolid transition in Bose-Einstein condensates (dBECs). Computing excitation spectra in the presence of vortices and persistent currents, we uncover a vortex-driven de-softening mechanism whereby quantized vorticity elevates the gapless Goldstone mode to a finite-energy roton, restoring superfluidity. This effect results in re-entrant supersolid phases as a function of rotation frequency, revealing a fundamental coupling between topological defects and crystalline order. |
| title | Vorticity-Crystalline Order Coupling in Supersolids: Excitations and Re-entrant Phases |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2601.05846 |