论文标题
全息晶格的光发射“实验”
Photoemission "experiments" on holographic lattices
论文作者
论文摘要
我们在此背景上构建了具有高标准竞选红外几何形状的2D全息离子晶格，并研究了单电子光谱函数（“ Arpes光发射曲线”）。光谱通常显示三峰结构，中央峰从尖锐但不是费米 - 液体样的准胶片到最大的最大最大值的交叉经历，并且宽侧峰类似于Hubbard带。这些发现部分通过对散装dirac方程的扰动近水压分析来解释。将虚构绿色的全息绿色功能与从量子蒙特卡洛获得的Hubbard模型的绿色功能进行比较时，我们发现全息模型为Hubbard Green功能提供了非常良好的拟合度。然而，将全息绿色函数转换为假想频率时的信息损失意味着与哈伯德样模型的更深层次的联系仍然值得怀疑。
We construct a 2D holographic ionic lattice with hyperscaling-violating infrared geometry and study single-electron spectral functions ("ARPES photoemission curves") on this background. The spectra typically show a three-peak structure, where the central peak undergoes a crossover from a sharp but not Fermi-liquid-like quasiparticle to a wide incoherent maximum, and the broad side peaks resemble the Hubbard bands. These findings are partially explained by a perturbative near-horizon analysis of the bulk Dirac equation. Comparing the holographic Green functions in imaginary frequency with the Green functions of the Hubbard model obtained from quantum Monte Carlo, we find that the holographic model provides a very good fit to the Hubbard Green function. However, the information loss when transposing the holographic Green functions to imaginary frequencies implies that a deeper connection to Hubbard-like models remains questionable.
