论文标题

部分可观测时空混沌系统的无模型预测

Non-minimal coupling Gauss-Bonnet holographic superconductors

论文作者

Mohammadi, Mahya, Sheykhi, Ahmad

论文摘要

通过使用量规/重力二元性,我们揭示了标量和麦克斯韦场之间非最小耦合对探针极限中全息超导体的影响。作为背景时空,我们考虑了具有平坦地平线的五维高斯河网(GB)黑洞。我们发现,对于非最小耦合常数的较大的GB耦合值的较大值较大值,临界温度会降低,这意味着冷凝很难形成。此外,我们研究全息图设置中的电导率。我们表明,在低频制度下,kramers-kronig关系将两个部分相互连接,而在高频下,两个部分则呈恒定的斜率上升。

By employing the gauge/gravity duality, we disclose the effects of the non-minimal coupling between the scalar and Maxwell fields on the holographic superconductors in the probe limit. As the background spacetime, we consider a five dimensional Gauss-Bonnet (GB) black hole with a flat horizon. We find out that the critical temperature decreases for larger values of GB coupling constant or smaller values of non-minimal coupling constant, which means that the condensation is harder to form. In addition, we study the electrical conductivity in the holographic setup. We show that at low frequency regime, Kramers-Kronig relation connects both parts of conductivity to each other, while at high frequency, two parts go up with constant slope.

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