论文标题
掺杂的全息效费系统
Doped holographic fermionic system
论文作者
论文摘要
我们构建了两个电流模型。它包括两个轨距场，这些轨距引入掺杂效果和中性标量场。然后，我们在数值上构建了带有标量头发的广告黑色勃雷几何形状。在这种背景下，我们使用伪级的Yukawa耦合来研究费米子系统。揭示了来自Yukawa偶联的一些通用性能。特别是，随着耦合的增加，光谱重量从低能带转移到了高能带。转移超过低能尺度，但不超过所有能量尺度。还探讨了特殊的特性。研究表明，随着掺杂的增加，差距打开了更加困难。这表明横山Yukawa耦合与掺杂之间存在竞争。
We construct a two-current model. It includes two gauge fields, which introduce the doping effect, and a neutral scalar field. And then we numerically construct an AdS black brane geometry with scalar hair. Over this background, we study the fermionic system with the pseudoscalar Yukawa coupling. Some universal properties from the pseudoscalar Yukawa coupling are revealed. In particular, as the coupling increases, there is a transfer of the spectral weight from the low energy band to the high energy band. The transfer is over low energy scales but not over all energy scales. The peculiar properties are also explored. The study shows that with the increase of the doping, the gap opens more difficult. It indicates that there is a competition between the pseudoscalar Yukawa coupling and the doping.
