Transport of interface states in the Heisenberg chain

We demonstrate the transport of interface states in the one-dimensional ferromagnetic Heisenberg model by a time-dependent magnetic field. Our analysis is based on the standard adiabatic theorem. This is supplemented by a numerical analysis via the recently developed time-dependent density matrix renormalization group method, where we calculate the adiabatic constant as a function of the strength of the magnetic field and the anisotropy of the interaction.

Michoel, T., Nachtergaele, B., Spitzer, W. (2008) Transport of interface states in the Heisenberg chain. J. Phys. A: Math. Theor. 41:492001.

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