Pré-Publication, Document De Travail (Preprint/Prepublication) Année : 2024

Measuring bipartite spin correlations of lattice-trapped dipolar atoms

Youssef Aziz Alaoui
  • Fonction : Auteur
Sean Muleady
  • Fonction : Auteur
Edwin Chaparro
  • Fonction : Auteur
Youssef Trifa
  • Fonction : Auteur
Ana Maria Rey
  • Fonction : Auteur
Tommaso Roscilde
  • Fonction : Auteur
Laurent Vernac
  • Fonction : Auteur

Résumé

We demonstrate a bipartition technique using a super-lattice architecture to access correlations between alternating planes of a mesoscopic array of spin-3 chromium atoms trapped in a 3D optical lattice. Using this method, we observe that out-of-equilibrium dynamics driven by long-range dipolar interactions lead to spin anti-correlations between the two spatially separated subsystems. Our bipartite measurements reveal a subtle interplay between the anisotropy of the 3D dipolar interactions and that of the lattice structure, without requiring single-site addressing. We compare our results to theoretical predictions based on a truncated cumulant expansion and a new cluster semi-classical method that we use to investigate correlations at the microscopic scale. Comparison with a high-temperature analytical model reveals quantum thermalization at a high negative spin temperature.

Dates et versions

hal-04780289 , version 1 (13-11-2024)

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Youssef Aziz Alaoui, Sean Muleady, Edwin Chaparro, Youssef Trifa, Ana Maria Rey, et al.. Measuring bipartite spin correlations of lattice-trapped dipolar atoms. 2024. ⟨hal-04780289⟩
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