Transverse Spin Dynamics in the Anisotropic Heisenberg Model Realized with Ultracold Atoms
In Heisenberg models with exchange anisotropy, transverse spin components are not conserved and can decay not only by transport, but also by dephasing.Here, we utilize ultracold atoms to simulate the dynamics of 1D Heisenberg spin chains and observe fast, local spin decay controlled by the anisotropy.However, even for isotropic interactions, we obs