US-India Cooperative Research: Phase Transitions in the Early Universe, Award in Indian Rupees

9714627 Bhattacharjee描述：这是美国和印度的一项研究合作，题为早期宇宙中的相变和宇宙中物质的大规模分布的探测。该项目将建立在芝加哥大学和塔塔基础研究所(TIFR)在1987至1992年间开发的理论天体物理学联合项目的基础上。目前的项目由芝加哥大学的David Schramm和班加罗尔印度天体物理研究所的Pijushpani Bhattacharjee指导。这些节点机构将作为组织中心，而不是参与者的唯一研究场所。这项研究将建立在早期工作的基础上，最初自然地关注超新星，后来研究夸克-强子相变在早期宇宙和超高能宇宙线相互作用中的作用。目前的目标将是计算出早期宇宙相变的宇宙学和天体物理学意义，特别是拓扑缺陷和弱电重生的意义；并研究银河系中暗物质的相空间分布和引力透镜现象，以此作为探索宇宙中暗物质大规模分布的探测器。合作范围：这项合作是美国和印度几位最杰出的天体物理学家联合研究计划的结果。产出最令人印象深刻，包括印度PI的开创性工作。该奖项将支持印度COPIS和博士后的几次短期访问，以及美国PI对印度的访问。除了这项研究有望带来的基础知识进步外，与印度宇宙学领导人交流思想对美国科学界也将是有价值的。***

9714627 Bhattacharjee Description: This is a U.S.-India research collaboration entitled Phase Transitions in the Early Universe and Probes of Large Scale Distribution of Matter in the Universe. This project will build on a joint program in theoretical astrophysics developed in 1987 thru 1992 between the University of Chicago and the Tata Institute of Fundamental Research (TIFR). The current project is under the direction of David Schramm, University of Chicago and Pijushpani Bhattacharjee, Indian Institute of Astrophysics (IIA), Bangalore. These nodel institutions will serve as organizational centers rather than sole research venues for the participants. The research will build on the earlier effort which in the beginning had a natural focus on the Supernovae, and later on the role of the quark-hadron phase transition in the early universe and ultra high energy cosmic ray interactions. The current objectives will be to work out cosmological and astrophysical implications of phase transitions in the early universe, particularly the implications of topological defects and electroweak baryogenesis; and to study the phase space distribution of dark matter in the Galaxy and the phenomenon of gravitational lensing as a probe of large-scale distribution of dark matter in the universe. Scope: This collaboration is an outgrowth of a joint research program among several of the most distinguished astrophysicists in the US and India. The output was most impressive including the pioneering work by the Indian PI. This award will support several short-term visits by Indian coPIs and postdocs, as well as visits to India by the US PI. In addition to the advances in fundamental knowledge expected from the research, the exchange of ideas with Indian leaders of cosmology will be valuable for the US scientific community. ***