• Corpus ID: 238634731

Dynamics of Spin Helices in the 1D XX Model

  title={Dynamics of Spin Helices in the 1D XX Model},
  author={Darren Pereira and Erich Mueller},
Motivated by cold atom experiments, we analytically study the dynamics of spin helices in the 1D XX model. Using the Jordan-Wigner transformation to map spins into fermions, we calculate the evolution of the spin helix over time. The fermions are non-interacting, with simple equations of motion. Nonetheless, the calculation is non-trivial, as the spin-helix initial condition corresponds to a highly non-equilibrium distribution of the fermions. We compare the resulting dynamics to a… 

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