Droplets of bosons at a narrow resonance
We consider bosons interacting through a narrow 𝑠-wave resonance. Such a resonance is characterized by an infinite scattering length and a large and negative effective range 𝑟0. We argue that any number 𝑁≥3 of bosons can form a self-bound cluster with the binding energy per particle increasing as 𝑁2...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
18 July, 2025
|
| In: |
Physical review
Year: 2025, Jahrgang: 112, Heft: 1, Pages: 1-8 |
| ISSN: | 2469-9934 |
| DOI: | 10.1103/zx28-gxlt |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/zx28-gxlt Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/zx28-gxlt 
|
| Verfasserangaben: | Ke Wang, Thimo Preis, and Dam Thanh Son |
| Zusammenfassung: | We consider bosons interacting through a narrow 𝑠-wave resonance. Such a resonance is characterized by an infinite scattering length and a large and negative effective range 𝑟0. We argue that any number 𝑁≥3 of bosons can form a self-bound cluster with the binding energy per particle increasing as 𝑁2 for 1≪𝑁≪(−𝑟0/𝑎bg)1/2, where 𝑎bg is the background scattering length (between atoms and molecules). In the opposite limit 𝑁≫(−𝑟0/𝑎bg)1/2, bosons form droplets with binding energy per particle saturating to a constant value independent of the particle number. The stability of clusters and droplets when the interaction is detuned from the resonance is also studied. |
|---|---|
| Beschreibung: | Gesehen am 26.11.2025 |
| Beschreibung: | Online Resource |
| ISSN: | 2469-9934 |
| DOI: | 10.1103/zx28-gxlt |