通过电子探测 Bose metal：不可避免的非费米液体散射与赝能隙物理
Probing a Bose Metal via Electrons: Inescapable non-Fermi liquid scattering and pseudogap physics
AI总结：
该研究提出费米子与具有低维相干性的非传统 Bose metal 平均场耦合，可自然产生非费米液体散射、赝能隙及铜氧化物中的相关谱特征。
摘要：
非费米液体行为和赝能隙形成，是空穴掺杂铜氧化物、镍氧化物、铱氧化物、钌氧化物、铁磷化物、掺杂 Mott 有机材料、过渡金属二硫族化合物、重费米子、d 电子与 f 电子金属等多种强关联材料中观测到的最知名奇异谱特征实例。我们证明，当费米子与由低维相干性构成的非传统 Bose metal [1] 平均场耦合时，这些特征是不可避免的结果。我们不仅发现了这两种奇异现象，还发现了许多已在例如铜氧化物中观测到的其他特征，包括节点—反节点二分性，以及动量（实）空间中的赝能隙不对称（对称）性。通过一个平均场获得这些奇异且迄今神秘的现象，为它们在经验上普遍出现提供了一种简单、普适、因而可广泛应用的解释。[1] A. Hegg、J. Hou 和 W. Ku，几何阻挫产生长期寻找的量子物质 Bose metal 相，《美国国家科学院院刊》2021年11月，118 (46) e2100545118。
英文摘要：
Non-Fermi liquid behavior and pseudogap formation are among the most well-known examples of exotic spectral features observed in several strongly correlated materials such as the hole-doped cuprates, nickelates, iridates, ruthenates, ferropnictides, doped Mott organics, transition metal dichalcogenides, heavy fermions, d- and f- electron metals, etc. We demonstrate that these features are inevitable consequences when fermions couple to an unconventional Bose metal [1] mean field consisting of lower-dimensional coherence. Not only do we find both exotic phenomena, but also a host of other features that have been observed e.g. in the cuprates including nodal anti-nodal dichotomy and pseudogap asymmetry(symmetry) in momentum(real) space. Obtaining these exotic and heretofore mysterious phenomena via a mean field offers a simple, universal, and therefore widely applicable explanation for their ubiquitous empirical appearance. [1] A. Hegg, J. Hou, and W. Ku, Geometric frustration produces long-sought Bose metal phase of quantum matter, Proceedings of the National Academy of Sciences Nov 2021, 118 (46) e2100545118.
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