论文标题
全息效率理论的交替电流电导率和超导特性
Alternating current conductivity and superconducting properties of the holographic effective theory
论文作者
论文摘要
我们通过考虑特殊的量轴较高衍生术语来构建全息有效的超导理论。仪表轴耦合导致的传输行为类似于双重边界场理论中的涡旋响应，从而导致弱动量耗散处交流电流（AC）电导率的非干燥行为。随着动量耗散的增加，低频的AC电导率显示出AC电导率。人们认为这是强动量耗散和量规耦合的结果。在超导阶段，该量表轴耦合也起着关键作用，从而导致在低频电导率下更明显的间隙。此外，我们还研究了量规场，轴突场和复杂标量场之间动量耗散强度以及各种耦合的强度的组合效应。
We construct a holographic effective superconducting theory by considering a special gauge-axion higher derivative term. The gauge-axion coupling results in the transport behavior similar to the vortex response in the dual boundary field theory leading to non-Drude behavior of alternating current (AC) conductivity at the weak momentum dissipation. With the momentum dissipation increasing, a dip exhibits in the AC conductivity at low frequency. It is thought to be the result of a combination of the strong momentum dissipation and the gauge-axion coupling. In the superconducting phase, this gauge-axion coupling also plays a key role leading to a more evident gap at the low frequency conductivity. In addition, we also study the combined effects of the strength of momentum dissipation and various couplings among the gauge field, axion fields and the complex scalar field.
