Workshop: Heraeus workshop on long-range interacting quantum systems, Vienna
Quantum thermalization of long-range interacting spins
Tag Bruno Laburthe-Tolra
Relaxation of the collective magnetization of a dense 3D array of interacting dipolar S = 3 atoms
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 đ =3 chromium atoms, under the effect of dipolar interactions.
arXiv:2005.13487 (2020) / Phys. Rev. Lett. 125, 143401 (2020)
Adiabatic spin-dependent momentum transfer in an SU(đ) degenerate Fermi gas
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)
Magnetic Atoms Quantum Simulators / QUANTERA CONSORTIUM MAQS
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.
Shelving spectroscopy of the strontium intercombination line
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)
Dynamics of an itinerant spin-3 atomic dipolar gas in an optical lattice
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 đ=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)
Cooling all external degrees of freedom of optically trapped chromium atoms using gray molasses
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)
Tutorial: Paris center for quantum computing, Paris
Some aspects of quantum simulation using cold atoms
Collective spin modes of a trapped quantum ferrofluid
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)
Dissipative cooling of spin chains by a bath of dipolar particles
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 dipoleâdipole interaction to a bath consisting of atoms with a strong magnetic moment.
arXiv:1803.10663 (2018) / New J. Phys. 20 073037 (2018)