Spinon decay in the spin-1/2 Heisenberg chain with weak next nearest neighbour exchange

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...

書目詳細資料
Main Authors:	Groha, S, Essler, F
格式:	Journal article
出版:	IOP Publishing 2017

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