@article{12090,
  author = {Lucas Gabardos and Bihui Zhu and Steven Lepoutre and Ana Maria Rey and Bruno Laburthe-Tolra and Laurent Vernac},
  title = {Relaxation of the collective magnetization of a dense 3D array of interacting dipolar S=3 atoms},
  abstract = {We report on measurements of the dynamics of the collective spin length (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. The observed spin population dynamics is unaffected by the use of a spin echo, and fully consistent with numerical simulations of the S=3 XXZ spin model. On the contrary, the observed spin length decays slower than in simulations, and surprisingly reaches a small but nonzero asymptotic value within the longest timescale. Our findings show that spin coherences are sensitive probes to systematic effects affecting quantum many-body behavior that cannot be diagnosed by merely measuring spin populations.},
  year = {2020},
  journal = {Physical Review Letters},
  volume = {125},
  chapter = {143401 },
  pages = {143401 },
  month = {2020-09},
  url = {https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.143401},
  doi = {10.1103/PhysRevLett.125.143401},
}