The Bethe Ansatz
The Kondo (s-d exchange) modeli.z.im.k
\[ H_{K} = \int dx \sum_{a} c^{\dagger}_{a} (x) (-i \partial_x) c_a (x) + J \sum_{a,b} c^{\dagger}_a (0) {\boldsymbol \sigma}_{ab} c_b (0) \cdot {\boldsymbol S}_{\mbox{imp}} (0) \]
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Created: 2024-01-18 Thu 14:24