| Full text | |
| Author(s): |
Francisco, R. M.
;
Rosa, D. S.
;
Frederico, T.
;
Krein, G.
;
Yamashita, M. T.
Total Authors: 5
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW A; v. 112, n. 3, p. 13-pg., 2025-09-15. |
| Abstract | |
As resonantly interacting trimers of the type AAB are progressively squeezed from D = 3 to D = 2, unatomic states emerge. We calculated the contacts from the high-momentum tail of the single-particle densities. The sharp increase in the contacts serves as a signature of the transition between the Efimov and unatomic regimes, characterized by the emergence of continuous scale invariance when the system reaches a critical dimension Dc. This continuous scale invariance starts to dominate the behavior of the system at the dimension D < Dc, below which the trimers' momentum-distribution tails exhibit a power-law behavior signaling the unatomic regime. To illustrate our findings, we studied compounds with the forms 7Li-23Na2, 7Li-87Rb2, and 7Li-133Cs2. The increase in the trimers' mass imbalance reduces the interval between Dc and D. The emergence of unatomic states can be experimentally verified by observing the two-body contact parameter, which is a quantity directly related to the thermodynamic properties of the gas. (AU) | |
| FAPESP's process: | 18/25225-9 - São Paulo Research and Analysis Center |
| Grantee: | Sergio Ferraz Novaes |
| Support Opportunities: | Special Projects |
| FAPESP's process: | 23/02261-8 - Dimensional aspects in few-body physics and applications in light exotic nuclei |
| Grantee: | Dérick dos Santos Rosa |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 23/13749-1 - Multidisciplinary data analysis in Big-data: from High Energy Physics to Astrophysics and Medical Sciences |
| Grantee: | Jun Takahashi |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 24/17816-8 - Emergent few-body dynamics in exotic nuclei and other applications |
| Grantee: | Tobias Frederico |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 23/08600-9 - Discrete and continuous scale invariance in the quantum few-body problem |
| Grantee: | Rafael Mendes Francisco |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |