关于举行印度科学教育与研究学院Sandeep 博士学术报告会的通知

發布時間:2019-06-27設置

報告題目:Cosmological and Quantum Aspects of Antisymmetric Tensors
报 告 人:Sandeep Aashish  IISER Bhopal (India)
主 持 人:張向東 教授
報告時間:2019年6月28日(星期五)下午15:00
報告地點:18號樓二樓213室物理與光電學院學術報告廳
歡迎廣大師生參加!
 
 
物理與光電學院
2019年6月27日
 
報告摘要:
Rank-2 antisymmetric tensors appear in the low energy limit of superstring models, and therefore it is interesting to study their properties in early universe. In this talk, we present an overview of our studies of the quantum and cosmological aspects of antisymmetric tensor. We use DeWitt-Vilkovisky's covariant effective action approach, which allows for inclusion of quantum gravitational effects in a gauge- and background- independent way, to study its quantization. As a first step towards studying cosmology, we study the viability of inflation driven by an antisymmetric tensor. We focus on analysing de-Sitter solutions, slow roll conditions and stability of field perturbations in FRW spacetime. 
 
報告人簡介:
Sandeep Aashish is a PhD student from IISER Bhopal India. His research
is mainly related to studying quantum gravitational effects in cosmological models using covariant effective action approach. He published 6 papers until now.
 

附件:

返回原圖
/