Supersolidity in Rydberg tweezer arrays

• URL: http://arxiv.org/abs/2407.12752v2
• Date: Wed, 31 Jul 2024 12:31:53 GMT
• Title: Supersolidity in Rydberg tweezer arrays
• Authors: Lukas Homeier, Simon Hollerith, Sebastian Geier, Neng-Chun Chiu, Antoine Browaeys, Lode Pollet,
• Abstract summary: Rydberg tweezer arrays provide a versatile platform to explore quantum magnets with dipolar XY or van-der-Waals Ising ZZ interactions. We propose a scheme combining dipolar and van-der-Waals interactions between Rydberg atoms, where the amplitude of the latter can be greater than that of the former. For repulsive interactions, we predict the existence of a robust supersolid phase in current Rydberg tweezer experiments.
• Score: 0.41232474244672235
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Rydberg tweezer arrays provide a versatile platform to explore quantum magnets with dipolar XY or van-der-Waals Ising ZZ interactions. Here, we propose a scheme combining dipolar and van-der-Waals interactions between Rydberg atoms, where the amplitude of the latter can be greater than that of the former, realizing an extended Hubbard model with long-range tunnelings in optical tweezer arrays. For repulsive interactions, we predict the existence of a robust supersolid phase accessible in current Rydberg tweezer experiments on the triangular lattice supported by large-scale quantum Monte Carlo simulations based on explicitly calculated pair interactions for ${}^{87}$Rb and with a critical entropy per particle $S/N \approx 0.19$. Such a lattice supersolid is long-lived, found over a wide parameter range in an isotropic and flat two-dimensional geometry, and can be realized for 100s of particles. Its thermodynamical and dynamical properties can hence be studied at a far larger scale than hitherto possible.

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