Direct production of fermionic superfluids in a cavity-enhanced optical dipole trap
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866913801827254272 |
|---|---|
| author | Bühler, Tabea Zwettler, Timo Bolognini, Gaia Fabre, Aurélien Helson, Victor Del Pace, Giulia Brantut, Jean-Philippe |
| author_facet | Bühler, Tabea Zwettler, Timo Bolognini, Gaia Fabre, Aurélien Helson, Victor Del Pace, Giulia Brantut, Jean-Philippe |
| contents | We present the production of quantum degenerate, superfluid gases of $^6$Li through direct evaporative cooling in a cavity-enhanced optical dipole trap. The entire evaporative cooling process is performed in a trap created by the TEM$_{00}$ mode of a Fabry-Pérot cavity, simultaneously driven on several successive longitudinal modes. This leads to near-complete cancellation of the inherent lattice structure along the axial direction of the cavity, as evidenced by the observation of long-lived dipole oscillations of the atomic cloud. We demonstrate the production of molecular Bose-Einstein condensates upon adiabatic conversion of a unitary Fermi gas evaporatively cooled in this trap. The lifetime and heating in the cavity trap are similar to those in a running wave dipole trap. Our system enables the optical production of ultracold samples using a total trap-laser power below $1$ W, leveraging the benefits of optical resonators as dipole traps in quantum gas research while maintaining a simple resonator design and minimizing additional experimental complexity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_05694 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Direct production of fermionic superfluids in a cavity-enhanced optical dipole trap Bühler, Tabea Zwettler, Timo Bolognini, Gaia Fabre, Aurélien Helson, Victor Del Pace, Giulia Brantut, Jean-Philippe Quantum Gases We present the production of quantum degenerate, superfluid gases of $^6$Li through direct evaporative cooling in a cavity-enhanced optical dipole trap. The entire evaporative cooling process is performed in a trap created by the TEM$_{00}$ mode of a Fabry-Pérot cavity, simultaneously driven on several successive longitudinal modes. This leads to near-complete cancellation of the inherent lattice structure along the axial direction of the cavity, as evidenced by the observation of long-lived dipole oscillations of the atomic cloud. We demonstrate the production of molecular Bose-Einstein condensates upon adiabatic conversion of a unitary Fermi gas evaporatively cooled in this trap. The lifetime and heating in the cavity trap are similar to those in a running wave dipole trap. Our system enables the optical production of ultracold samples using a total trap-laser power below $1$ W, leveraging the benefits of optical resonators as dipole traps in quantum gas research while maintaining a simple resonator design and minimizing additional experimental complexity. |
| title | Direct production of fermionic superfluids in a cavity-enhanced optical dipole trap |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2411.05694 |