新葡萄京娱乐场网址

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
时间:2019-06-26 编辑: 新葡萄京娱乐场网址

报告题目:Cosmological and Quantum Aspects of Antisymmetric Tensors

报告人Sandeep Aashish  IISER Bhopal (India)

主持人:张向东   教授

报告时间2019628日(星期五)下午15:00

报告地点18号楼二楼213室新葡萄京娱乐场网址学术报告厅

欢迎广大师生参加!

 

               新葡萄京娱乐场网址

               2019626

 

报告摘要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. 

 

报告人简介Sandeep Aashish is a PhD student fromIISER 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.


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