报告题目:零荷密度全息超导、爱因斯坦-标量系统和超引力解
报告人:任杰 副教授(中山大学)
报告时间:2022年6月9日(周四)下午15:30-16:30
报告地点:在线报告(腾讯会议ID:442 4477 5872)
报告摘要:
We construct holographic superconductors at zero density. The model enjoys a luxury property that the background geometry dual to the ground state is analytically available. It has a hyperscaling-violating geometry in the IR and is asymptotically AdS in the UV. We numerically construct the finite temperature solution of hairy black holes and verify the phase transition by tuning a double-trace deformation parameter. We also give some insights on the extremal limit of supergravity solutions. For a holographic superconductor from M-theory, we obtain an analytic solution of the AC conductivity, which explicitly shows a superconducting delta function and a hard gap.
参考文献:
[1] J. Ren and H. Xie, Holographic superconductors at zero density, arXiv:2206.03498.
[2] J. Ren and W. Zheng, Analytic AC conductivities from holography, Phys. Rev. D 105, 066013 (2022), [arXiv:2109.07481].
报告人简介:
任杰,中山大学物理学院副教授。南开大学本科和硕士毕业,2013年于美国普林斯顿大学获得博士学位,随后在希腊的克里特大学和以色列的希伯来大学做博士后,2018年加入中山大学。近年来主要围绕AdS/CFT(规范/引力对偶)进行研究, 尤其是用AdS时空的广义相对论作为工具研究某些强耦合体系的性质。
报告链接:
零荷密度全息超导、爱因斯坦-标量系统和超引力解_哔哩哔哩_bilibili