Doped holographic superconductors in the Gubser–Rocha model  

作　　者：Ziyi Zhao Wenhe Cai Shuta Ishigaki 

机构地区：[1]Department of Physics,Shanghai University,Shanghai 200444,China [2]Shanghai Key Laboratory of High Temperature Superconductors,Department of Physics,Shanghai University,Shanghai 200444,China

出　　处：《Communications in Theoretical Physics》2024年第4期80-92,共13页理论物理通讯（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12275166,11875184,12147158 and 11805117);the NFSC-NFR joint program 12311540141.

摘　　要：We construct a doped holographic superconductor in the Gubser–Rocha model,and realize a superconducting dome in the middle of the temperature-doping phase diagram.It is worth noting that unlike in previous research,the profile of our dome shrinks inward near to zero temperature.From the numerical observation for the coupling dependence of the phase diagram,we find that the coupling between the two gauge fields plays a crucial role in the formation of the dome.We also analytically calculate the DC conductivity of the normal phase of the system in the momentum dissipation and obtain resistivity which is proportional to the temperature.The AC conductivity is calculated numerically.

关 键 词：AdS-CFT correspondence High-Tc superconductor AC/DC conductivities Gubser-Rocha geometry 

分 类 号：O511.3[一般工业技术—材料科学与工程]