论文标题

Hubbard模型与Kondo模型:强耦合极限

Hubbard model vs. Kondo model: Strong coupling limit

论文作者

Ivantsov, Ilya, Ferraz, Alvaro, Kochetov, Evgenii

论文摘要

Hubbard模型和晶格Kondo模型显示在强耦合极限下变得相同。但是,与强耦合体制的背离产生了不同的理论:相关的扰动术语会导致短期旋转交换$(T-J $型号)或短期电荷交换($ t-V $型号)。

The Hubbard model and the lattice Kondo model are shown to become identical in the strong-coupling limit. A departure from the strong-coupling regime produces distinct theories, however: the relevant perturbation terms give rise to either short-range spin exchange $(t-J$ model) or short-range charge exchange ($t-V$ model), respectively.

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