R^4 corrections to holographic Schwinger effect  

作　　者：李飞 张自强 陈刚 

机构地区：[1]Physical Department,School of Mathematics and Physics, China University of Geosciences,Wuhan

出　　处：《Chinese Physics C》2018年第12期78-85,共8页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11705166,11475149)

摘　　要：We consider R^4 corrections to the holographic Schwinger effect in an AdS black hole background and a confining D3-brane background. The potential between a test particle pair are performed for both backgrounds. We find there is no potential barrier ill the critical electric field, which means that the system becomes catastrophically unstable. It is shown that for both backgrounds, increasing the inverse ＇t Hooft coupling parameter 1/λ enhances the Schwinger effect. We also discuss the possible relation between the Schwinger effect and the viscosity-entropy ratio η/s in strong coupling.We consider R^4 corrections to the holographic Schwinger effect in an AdS black hole background and a confining D3-brane background. The potential between a test particle pair are performed for both backgrounds. We find there is no potential barrier ill the critical electric field, which means that the system becomes catastrophically unstable. It is shown that for both backgrounds, increasing the inverse ＇t Hooft coupling parameter 1/λ enhances the Schwinger effect. We also discuss the possible relation between the Schwinger effect and the viscosity-entropy ratio η/s in strong coupling.

关 键 词：holographic Schwinger effect AdS/CFT potential analysis 

分 类 号：G255.2[文化科学—图书馆学] G232