Gravitational Physics from the Cosmic Microwave Background

普林斯顿引力小组将继续通过宇宙微波背景(CMB)辐射的实验研究来探索引力物理和宇宙学。中巴是大爆炸后炽热的余辉。对CMB的测量构成了标准宇宙模型的基础。我们的工作建立并扩展了以前的工作，即表征温度和偏振各向异性(辐射的空间分布的变化)，并为WMAP卫星奠定了基础。我们将测量细角尺度的温度各向异性(11000)和偏振，以了解暗能量、暗物质、中微子的质量和宇宙的电离历史。我们的实验结果预计将直接为我们提供通货膨胀时代的信息。拟议研究的更广泛影响包括对学生的实质性教育发展、持续的公众宣传以及上述科学影响。普林斯顿大学将继续为本科生和研究生开展积极的实践研究项目。例如，在过去的三年里，我们指导了40多名暑期学生，其中包括14名女性和少数族裔。小组成员将继续频繁地进行公开演讲和采访，指导当地物理学会的学生，与当地学校团体互动，开发新班级，并维护公共网页。

The Princeton Gravity Group will continue its exploration of gravitational physics and cosmology through the experimental study of the cosmic microwave background (CMB) radiation. The CMB is the fiery afterglow of the Big Bang. Measurements of the CMB form the bedrock foundation of the standard cosmological model. Our work builds on and extends previous work that characterized the temperature and polarization anisotropies (variations in the spatial distribution of the radiation) and laid the foundation for the WMAP satellite. We will measure the fine angular scale temperature anisotropy (l1000) and polarization to understand the dark energy, dark matter, mass of the neutrino, and ionization history of the universe. Results from our experiments are anticipated to directly inform us of the inflationary epoch.The broader impacts of the proposed research include substantial educational development for students, continued public outreach, and the scientific impacts mentioned above. The Princeton group will continue its vigorous program of hands-on research for undergraduates and graduate students. As one example, we have supervised over 40 summer students over the past three years, including 14 women and minorities. Group members will continue to give frequent public talks and interviews, mentor the local Society of Physics Students, interact with local school groups, develop new classes, and maintain public web pages.