Shift of the Bose-Einstein condensation temperature due to dipolar interactions
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866912205696401408 |
|---|---|
| author | Krstajić, Milan Kučera, Jiří Hofer, Lucas R. Lamb, Gavin Juhász, Péter Smith, Robert P. |
| author_facet | Krstajić, Milan Kučera, Jiří Hofer, Lucas R. Lamb, Gavin Juhász, Péter Smith, Robert P. |
| contents | We report the first measurements of the BEC critical temperature shift due to dipolar interactions, employing samples of ultracold erbium atoms which feature significant (magnetic) dipole-dipole interactions in addition to tuneable contact interactions. Using a highly prolate harmonic trapping potential, we observe a clear dependence of the critical temperature on the orientation of the dipoles relative to the trap axis. Our results are in good agreement with mean-field theory for a range of contact interaction strengths. This work opens the door for further investigations into beyond-mean-field effects and the finite-temperature phase diagram in the more strongly dipolar regime where supersolid and droplet states emerge. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_16318 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Shift of the Bose-Einstein condensation temperature due to dipolar interactions Krstajić, Milan Kučera, Jiří Hofer, Lucas R. Lamb, Gavin Juhász, Péter Smith, Robert P. Quantum Gases We report the first measurements of the BEC critical temperature shift due to dipolar interactions, employing samples of ultracold erbium atoms which feature significant (magnetic) dipole-dipole interactions in addition to tuneable contact interactions. Using a highly prolate harmonic trapping potential, we observe a clear dependence of the critical temperature on the orientation of the dipoles relative to the trap axis. Our results are in good agreement with mean-field theory for a range of contact interaction strengths. This work opens the door for further investigations into beyond-mean-field effects and the finite-temperature phase diagram in the more strongly dipolar regime where supersolid and droplet states emerge. |
| title | Shift of the Bose-Einstein condensation temperature due to dipolar interactions |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2501.16318 |