论文标题
三角形费米 - 哈伯德模型的量子模拟器中非对称光发射和隧道光谱的建议
Proposal for asymmetric photoemission and tunneling spectroscopies in quantum simulators of the triangular-lattice Fermi-Hubbard model
论文作者
论文摘要
三角晶格费米 - 哈伯德模型的最新实现的量子模拟器，包括带有超电压费仪的三角形光学晶格和过渡金属二分法的异质结构，以及更先进的技术，以及探测它们的更先进的技术，以研究它们，以研究它们，以研究它们，以研究它们，用于研究fysics fysiced sufticed fysics fysic fysiced sufted fermi-fermi-hub。在这里，我们从理论上预测了不对称的光发射和隧穿光谱，可用于轻度孔掺杂和电子掺杂的三角形Mott Mott抗铁磁铁，并揭示两种不同类型的磁性极性子：A \ Emph {light}重新授权的二级验中，与旋转背景相同，并具有相同的旋转型，并具有一定的转变。动量和几乎平坦的频带，使用分析和无偏的数值方法。我们通过探测包括光谱函数，状态的密度，能量分散体和准粒子重量在内的各种可观察到的物品，提出这些理论发现将在沮丧的光学晶格和Moiré超晶格中进行验证。此外，我们揭示了自旋背景对电荷掺杂的不对称响应，这表明局部自旋和自由度自由度之间的相互作用在掺杂的三角形Mott Mott Antiferromagnets中起着至关重要的作用。
Recent realization of well-controlled quantum simulators of the triangular-lattice Fermi-Hubbard model, including the triangular optical lattices loaded with ultracold Fermions and the heterostructures of the transition-metal dichalcogenides, as well as the more advanced techniques to probe them, pave the way for studying frustrated Fermi-Hubbard physics. Here, we theoretically predict asymmetric photoemission and tunneling spectroscopies for a lightly hole-doped and electron-doped triangular Mott antiferromagnet, and reveal two distinct types of magnetic polarons: a \emph{lightly} renormalized quasiparticle with the same momentum as the spin background and a \emph{heavily} renormalized quasiparticle with a shifted momentum and a nearly flat band, using both analytical and unbiased numerical methods. We propose these theoretical findings to be verified in frustrated optical lattices and Moiré superlattices by probing various observables including the spectral function, the density of states, the energy dispersion and the quasiparticle weight. Moreover, we reveal the asymmetric response of the spin background against charge doping, demonstrating that the interplay between the local spin and charge degrees of freedom plays a vital role in doped triangular Mott antiferromagnets.
