报告题目:The control issues of KKLT de Sitter construction in string theory
报告人:高昕 研究员(四川大学)
报告时间:2020 年 12 月 31 日(周四)10:00
报告地点:在线报告( 腾讯会议 ID : 826 248 240)
报告摘要:
In this talk, I will introduction the problem of realizing de Sitter space in string compactifications, especially the proposal by Kachru, Kallosh, Linde and Trivedi (KKLT). We analyze to which extent the KKLT proposal for the construction of de Sitter vacua in string theory is quantitatively controlled. I will then explain why, according our recent analysis, extended singularities in the bulk of the compact space appear to generically threaten the construction. In particular, we show that, requiring the curvature to be small in the conifold region, one is generically forced into a regime where the warp factor becomes negative in a large part of the Calabi-Yau orientifold. We call it the "bulk singular problem".
报告人简介:高昕,四川大学物理学院研究员。2008年本科毕业于北京师范大学,2014年博士毕业于中科院理论物理所,期间于2011-2013年在德国马普物理所博士联合培养。此后分别于美国弗吉尼亚理工大学,意大利罗马第二大学,德国海德堡大学从事博士后工作。2020年开始在四川大学工作。