We report on measurements of the dynamics of the total magnetization and spin populations in an almost unit-filled lattice system comprising about 10^4 spin 𝑆 =3 chromium atoms, under the effect of dipolar interactions.
arXiv:2005.13487 (2020) / Phys. Rev. Lett. 125, 143401 (2020)
We introduce a spin-orbit coupling scheme, where a retroreflected laser beam selectively diffracts two spin components in opposite directions.
arXiv:2003.13444 (2020) / Phys. Rev. A 102, 013317 (2020)
We propose to realize a novel quantum simulator made of magnetic atoms in periodic potentials, which will enable the investigation of quantum-many body problems associated with long-range dipole-dipole interactions.
We present a spectroscopy scheme for the 7 kHz wide 689 nm intercombination line of strontium. We rely on shelving detection, where electrons are first excited to a metastable state by the spectroscopy laser before their state is probed using the broad transition at 461 nm.
arXiv:1910.11718 (2019) / J. Phys. B: At. Mol. Opt. Phys. 53 085005 (2020)
In this work we report on our investigation of the quantum many-body dynamics of a large ensemble of bosonic magnetic chromium atoms with spin 𝑆=3 in a three-dimensional lattice as a function of lattice depth. Using extensive theory and experimental comparisons, we study the dynamics of the population of the different Zeeman levels and the total magnetization of the gas across the superfluid to the Mott insulator transition.
arXiv:1905.06123 (2019) / Phys. Rev. A 100, 033609 (2019)
We report on a scheme to cool and compress trapped clouds of highly magnetic 52Cr atoms. This scheme combines sequences of gray molasses, which freeze the velocity distribution, and free evolutions in the (close to) harmonic trap, which periodically exchange the spatial and velocity degrees of freedom.
arXiv:1812.09177 (2018) / Phys. Rev. A 99, 023607 (2019)
Some aspects of quantum simulation using cold atoms
We report on the observation of a collective spin mode in a spinor Bose-Einstein condensate.
arXiv:1804.10254 (2018) / Phys. Rev. Lett. 121, 013201 (2018)
We consider a spin chain of fermionic atoms in an optical lattice, interacting with each other by super-exchange interactions. We theoretically investigate the dissipative evolution of the spin chain when it is coupled by magnetic dipole–dipole interaction to a bath consisting of atoms with a strong magnetic moment.
arXiv:1803.10663 (2018) / New J. Phys. 20 073037 (2018)
We study the spin dynamics and approach towards local thermal equilibrium of a macroscopic ensemble of S = 3 chromium atoms pinned in a three dimensional optical lattice and prepared in a pure coherent spin state, under the effect of magnetic dipole–dipole interactions.
arXiv:1803.02628 (2018) / Nat. Commun. 10, 1714 (2019)
