论文标题
在对称的安德森晶格中，间隙的电子液态，昆多绝缘子状态
Gapped electron liquid state in the symmetric Anderson lattice, Kondo insulator state
论文作者
论文摘要
在平均野外方法的框架中研究了在对称的安德森模型中实现的昆多绝缘子状态（KIS）。结果表明，在带有双细胞的晶格中，近托绝缘子的状态实现，而间隙电子液体的行为就像是无间隙的majorabal旋转液体。 D-电子的本地瞬间形成了一个静态$ z_2 $ - 乐队电子移动的静态$ z_2 $。准粒子激发光谱中的间隙值随着外部磁场的增加而降低，并以其临界值关闭。研究了电子液体的行为，以实现模型的任意维度。提出的方法导致对KI的描述，而无需诉诸人为的对称性，以替代对该阶段状态的物理性质的替代理解。
The Kondo insulator state (KIS) realized in the symmetric Anderson model at half filling is studied in the framework of a mean field approach. It is shown that the state of the Kondo insulator is realized in a lattice with a double cell and a gapped electron liquid behaves like a gapless Majorana spin liquid. The local moments of d-electrons form a static $Z_2$-field in which band electrons move. The gap value in the quasi-particle excitations spectrum decreases with increasing an external magnetic field and closes at its critical value. The behavior of an electron liquid is studied for an arbitrary dimension of the model. The proposed approach leads to the description of KIS without the need to resort to artificial symmetry breaking to alternative understanding of the physical nature of this phase state.
