French version: Études des corrélations de spin dans un système d’atomes dipolaires piégés dans un réseau optique Dans ce manuscrit nous étudions le développement de corrélations de spin entre atomes de chrome piègés dans un réseau optique. Ce système se…
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We perform collective spin measurements to study the buildup of two-body correlations between ≈10^4 spin s=3 chromium atoms pinned in a 3D optical lattice.
arXiv:2201.07277 (2022) / Phys. Rev. Lett. 129, 023401 (2022)
The superradiant laser optical cavity spacer has been made and polished by the laboratory optician Thierry Billeton. Furthermore, the vacuum system is now assembled, but for the cavity.
Welcome to Thomas Lauprêtre, starting his post-doctoral research on the chromium project!
Welcome to Ziyad Amodjee, the first post-doctoral researcher joining the superradiant laser experiment!
Spontaneous symmetry breaking is a property of Hamiltonian equilibrium states which, in the thermodynamic limit, retain a finite average value of an order parameter even after a field coupled to it is adiabatically turned off. In the case of quantum spin models with continuous symmetry, we show that this adiabatic process is also accompanied by the suppression of the fluctuations of the symmetry generator—namely, the collective spin component along an axis of symmetry.
arXiv:2202.08607 (2022) / Phys. Rev. Lett. 129, 113201 (2022)
We have achieved coherent control of the SU(10) spin, with the implementation of adiabatic transfer between selected spin states in the degenerate gas. This puts us one step closer to exploring the emergence of correlations in our system, following the ideas developed in our collaboration with T. Roscilde and his team.
Welcome to Benjamin Pasquiou, new permanent member of the group!
In this review, we aim to present the aspects of the magnetic quantum-gas platform that make it unique for exploring ultracold and quantum physics as well as to give a thorough overview of experimental achievements.
arXiv:2201.02672 (2022) / Rep. Prog. Phys. 86 026401 (2022)
