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Bouncing universe and non-BPS brane
2011-10-21  【 】【打印】【关闭
Institute of Theoretical Physics
Chinese Academy of Sciences
学术报告
Title
题目
Bouncing universe and non-BPS brane
Speaker
报告人
Dr. Jin U Kang
Kim Il Sung University, Pyongyang, DPR. Korea
Date
日期
2011-10-21 AM 10:00 Friday
Venue
地点
ITP New Building 6420, 理论物理研究所新楼四层多媒体教室
Abstract
摘要

We describe string frame bouncing universe scenarios involving the creation and annihilation of a non-BPS D9-brane in type IIA superstring theory. We find several classes of solutions, in which the bounce is driven by the tachyon dynamics of the non-BPS brane. The metric and the dilaton are consistently described in terms of the lowest order effective action. The bounce solutions interpolate between contracting and expanding pre-big bang (or post-big bang) solutions.

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