Spinon decay in the spin-1/2 Heisenberg chain with weak next nearest neighbour exchange
Integrable models support elementary excitations with infinite lifetimes. In the spin-1/2 Heisenberg chain these are known as spinons. We consider the stability of spinons when a weak integrability breaking perturbation is added to the Heisenberg chain in a magnetic field. We focus on the case where...
| Những tác giả chính: | , |
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| Định dạng: | Journal article |
| Được phát hành: |
IOP Publishing
2017
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