论文标题
抗铁磁金属理论中使用Parmagnons和Bosonic Spinon的自旋密度波，费米液和分数化相
Spin density wave, Fermi liquid, and fractionalized phases in a theory of antiferromagnetic metals using paramagnons and bosonic spinons
论文作者
论文摘要
可以用电子样的准粒子的小费米表面来描述掺杂孔的库层的伪制成金属相，该粒子包裹着违反Luttinger关系的体积。这种违规需要存在其他分数激发，这些激发可以看作是paramagnon的分数残留物。我们将Paramagnon分别为玻色旋旋子，并提出了玻色旋子，Higgs场和Fermions的Ancilla层的规格理论，该层与原始电子结合。与小费米表面金属一起，该理论显示了传统的阶段：具有低能帕拉格诺模式的费米液体，以及具有自旋密度波顺序的相位。我们遵循这些量子相变的电子光发射光谱的演变。我们考虑了两种公共的néel和不相称的自旋密度波相。
The pseudogap metal phase of the hole-doped cuprates can be described by small Fermi surfaces of electron-like quasiparticles, which enclose a volume violating the Luttinger relation. This violation requires the existence of additional fractionalized excitations which can be viewed as fractionalized remnants of the paramagnon. We fractionalize the paramagnon into bosonic spinons, and present a gauge theory of bosonic spinons, a Higgs field, and an ancilla layer of fermions coupled to the original electrons. Along with the small Fermi surface metal, this theory displays conventional phases: the Fermi liquid with a low-energy paramagnon mode, and phases with spin density wave order. We follow the evolution of the electronic photoemission spectrum across these quantum phase transitions. We consider both the two-sublattice Néel and incommensurate spin density wave phases.
