Note on the reflectance of mirrors exposed to a strontium beam
While a number of experiments use heated sapphire windows to reduce strontium deposition and increase the viewport lifetime, here we study another possibility, consisting of sending the laser beam into the atomic flux by reflecting it off a mirror at 45 degree exposed to the strontium flux. We present our attempt to find a substrate that can be exposed to strontium and maintain high reflectivity.
arXiv:1802.08499 (2018)
Retardation effects in spectroscopic measurements of the Casimir-Polder interaction
We focus on selective reflection, one of the main spectroscopic probes of Casimir-Polder interactions. We calculate selective reflection spectra using the full, distance dependent, Casimir-Polder energy shift and linewidth.
arXiv:1801.06119 (2018) / Phys. Rev. A 97, 023806 (2018)
Tutorial: ENS, Paris
Dipolar quantum gases
First blue magneto-optical trap.
Our first blue magneto-optical trap.
Spin mixing and protection of ferromagnetism in a spinor dipolar condensate
We study spin mixing dynamics in a chromium dipolar Bose-Einstein condensate, after tilting the atomic spins by an angle 𝜃 with respect to the magnetic field.
arXiv:1705.08358 (2017) / Phys. Rev. A 97, 023610 (2018)
End of bakeout
The bake-out is completed, the blue laser system is in place. Oven loading and laser cooling come next.
Conference: APS March meeting, New Orleans
Non equilibrium physics of many interacting large spins
New arrival: Isam Manai
Welcome to Isam Manai, first post-doc on the strontium apparatus, taking on the challenge of building it!
Competition between Bose-Einstein condensation and spin dynamics
We study the impact of spin-exchange collisions on the dynamics of Bose-Einstein condensation by rapidly cooling a chromium multicomponent Bose gas.
arXiv:1607.02406 (2016) / Phys. Rev. Lett. 117, 185302 (2016)
Tutorial: DAMOP, Rhode island
Large spin magnetism