Luttinger liquid coupled to quantum spins: Flow equation approach to the Kondo necklace model
We study a lattice realization of a Luttinger liquid interacting with quantum spins in terms of an antiferromagnetic S=1/2 Heisenberg chain, where each spin is also coupled to a σ=1/2 Kondo spin degree of freedom. This model describes the low-energy spin dynamics in quasi-one-dimensional materials,...
Главные авторы: | Essler, F, Kuzmenko, T, Zaliznyak, I |
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Формат: | Journal article |
Язык: | English |
Опубликовано: |
2007
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