Finite-temperature dynamical structure factor of the Heisenberg-Ising chain
We consider the spin-1/2 Heisenberg XXZ chain in the regime of large Ising-type anisotropy Δ. By a combination of duality and Jordan-Wigner transformations we derive a mapping to weakly interacting spinless fermions, which represent domain walls between the two degenerate ground states. We develop a...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2009
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