论文标题
在强密度波中的一对口袋上的紧急通道
Emergent channel over a pair of pockets in strong density waves
论文作者
论文摘要
电子散布在费米表面之间的不同通道是各种电子量子问题的关键，例如超导性和密度波。我们考虑了一个有效的模型，在较高的维度中，原始模型中的两个口袋中的每个口袋中的每个口袋都映射到两个dirac fermions的（Landau级别）。当两个来自不同对的Dirac Fermions歼灭时，我们发现了一个新兴的通道，其中强密度波是必不可少的。我们通过在铁磁和反铁磁阶的附近进行模型示例的数值计算来支持我们的分析。我们还讨论了对电子相互作用通道的有趣后果，而电子相互作用渠道可能会引起均值范围的波动。
Different channels over which electrons scatter between parts of the Fermi surface are the key to various electronic quantum matters, such as superconductivity and density waves. We consider an effective model in higher dimensions where each of the two pockets in the original model maps to (the Landau levels of) two Dirac fermions. We discover an emergent channel when two Dirac fermions from different pairs annihilate, where the presence of a strong density wave is essential. We support our analysis with numerical calculations on model examples in the vicinity of ferromagnetic and antiferromagnetic orders. We also discuss interesting consequences on electron interaction channels that beyond-mean-field fluctuations may induce.
