Skip to Main content Skip to Navigation
Theses

Ultracold dysprosium gas in optical dipole traps : control of interactions between highly magnetic atoms

Abstract : In this thesis, I present the study of the laser trapping and cooling of a Dysprosium atomic gas. This latter belong to the lanthanide family, it exhibits a large angular momentum in its electronic ground state, making it a suitable candidate for investigating dipolar quantum gases. These systems present a major interest as they can lead to the observation of novel quantum phenomena thanks to the anisotropic and long-range character of the interaction between magnetic dipoles. Moreover, Dysprosium has a rich electronic structure offering the possibility to implement strong light-spin coupling with a reduced heating with respect to alkali species, which paves the way toward the realization of synthetic gauge fields.In this work, I present the experimental investigation of different interaction mechanisms occurring in an ultracold gas of Dysprosium, ranging from light-assisted collisions to dipolar relaxation and evaporative cooling. I expose also the experimental realization of an effective magnetic field, using spin-dependent light-shift, allowing optical control over atomic interactions by means of Feshbach resonances.
Complete list of metadata

Cited literature [225 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01886206
Contributor : Abes Star :  Contact Connect in order to contact the contributor
Submitted on : Tuesday, October 2, 2018 - 4:29:10 PM
Last modification on : Friday, October 15, 2021 - 1:37:08 PM
Long-term archiving on: : Thursday, January 3, 2019 - 3:32:52 PM

File

Bouazza-2018-These.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01886206, version 1

Citation

Chayma Bouazza. Ultracold dysprosium gas in optical dipole traps : control of interactions between highly magnetic atoms. Physics [physics]. Université Paris sciences et lettres, 2018. English. ⟨NNT : 2018PSLEE012⟩. ⟨tel-01886206⟩

Share

Metrics

Record views

639

Files downloads

1286