Loading a quantum gas from a hybrid dimple trap to a shell trap
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2022
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| _version_ | 1866913329352540160 |
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| author | Rey, David Thomas, Simon Sharma, Rishabh Badr, Thomas Longchambon, Laurent Dubessy, Romain Perrin, Hélène |
| author_facet | Rey, David Thomas, Simon Sharma, Rishabh Badr, Thomas Longchambon, Laurent Dubessy, Romain Perrin, Hélène |
| contents | Starting from a degenerate Bose gas in a hybrid trap combining a magnetic quadrupole trap and an attractive optical trap resulting from a focused laser beam, we demonstrate the efficient loading of this quantum gas into a shell-shaped trap. The shell trap is purely magnetic and relies on adiabatic potentials for atoms in an inhomogeneous magnetic field dressed by a radiofrequency (rf) field. We show that direct rf evaporation in the hybrid trap enables an efficient and simple preparation of the cold sample, well adapted to the subsequent loading procedure. The transfer into the shell trap is adiabatic and limits the final excitation of the center-of-mass motion to below 2 micrometres. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2208_14684 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Loading a quantum gas from a hybrid dimple trap to a shell trap Rey, David Thomas, Simon Sharma, Rishabh Badr, Thomas Longchambon, Laurent Dubessy, Romain Perrin, Hélène Quantum Gases Starting from a degenerate Bose gas in a hybrid trap combining a magnetic quadrupole trap and an attractive optical trap resulting from a focused laser beam, we demonstrate the efficient loading of this quantum gas into a shell-shaped trap. The shell trap is purely magnetic and relies on adiabatic potentials for atoms in an inhomogeneous magnetic field dressed by a radiofrequency (rf) field. We show that direct rf evaporation in the hybrid trap enables an efficient and simple preparation of the cold sample, well adapted to the subsequent loading procedure. The transfer into the shell trap is adiabatic and limits the final excitation of the center-of-mass motion to below 2 micrometres. |
| title | Loading a quantum gas from a hybrid dimple trap to a shell trap |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2208.14684 |