题     目：Holographic Global Vortices with Novel Boundary Conditions

主 讲 人：Markus Amano

单     位：日本山形大学

时     间：11月20日18:00

ZOOM ：713 668 5659

密    码 : 123456

摘     要：The AdS/CFT correspondence has significantly impacted the study of strongly coupled systems, providing insights into various condensed matter phenomena through its holographic duality. This paper introduces an alternative approach to the breaking of the global U(1) symmetry in the bulk in two asymptotically AdS spacetimes: AdS with a hard wall and the AdS black brane. We explore a (3+1)-dimensional bulk U(1) symmetry-breaking vacuum within a global U(1) φ⁴ field theory, without the gauge field present in prior models. We find that the symmetry-breaking vacuum requires the mass squared to be proportional to the quartic coupling. Additionally, we investigate numerical solutions of topologically stable vortex strings extending into the bulk.

简     介：Dr. Markus Amano graduated from the University of Alabama, USA, has been a postdoc at Henan University, China, and is now a postdoc at Yamagata University, Japan. His expertise is the AdS/CFT correspondence and he has been studying solitons during his two postdoc studies. He has published 7 papers in Prog.Part.Nucl.Phys., JHEP and Phys.Rev.D, with over 100 citations in total.