Inversion symmetry breaking in cold atomic spin patterns

Krešić, Ivor and Robb, Gordon and Labeyrie, Guillaume and Oppo, Gian Luca and Kaiser, Robin and Ackemann, Thorsten; (2019) Inversion symmetry breaking in cold atomic spin patterns. In: 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 . IEEE, DEU. ISBN 9781728104690

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    Abstract

    Laser driven cold atoms in front of a retro-reflecting mirror exhibit self-organization above pump threshold. It was recently demonstrated how this system can be used to mimic a transverse lattice of interacting spins (see Fig. 1) [1]. The spontaneously formed lattice breaks both translational and rotational symmetries of the initial homogeneous spin state. By applying a constant longitudinal magnetic field of Bz ∼ 100 mG a switching between antiferromagnetic square and ferri-magnetic hexagonal pattern ordering can be induced. We study the coupling between this magnetic field and modulations in the atomic magnetization.

    ORCID iDs

    Krešić, Ivor ORCID logoORCID: https://orcid.org/0000-0001-8349-4605, Robb, Gordon ORCID logoORCID: https://orcid.org/0000-0002-3004-5926, Labeyrie, Guillaume, Oppo, Gian Luca ORCID logoORCID: https://orcid.org/0000-0002-5376-4309, Kaiser, Robin and Ackemann, Thorsten ORCID logoORCID: https://orcid.org/0000-0003-2727-7395;