CAREER: Confronting fundamental theories with observations in cosmology

职业：将基本理论与宇宙学观察进行比较

• 批准号: 0748819
• 负责人: Stephon Alexander
• 金额: $ 40万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-02-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0748819&HistoricalAwards=false
• 关键词: CAREER; Confronting; fundamental; theories; observations

The search for a quantum theory of gravity has seen progress with the advent of string theory and loop quantum gravity, but both lack direct contact with experiment. The PI proposes a five-year plan that can potentially resolve fundamental problems in cosmology and particle physics by developing new models that arise from theories beyond the standard model and quantum gravity. Additionally, he proposes new observational schemes to test these models. The PI's long-term research plans over the next five years focus on two themes. One is at the Interface of Particle Physics and Cosmology where he hopes to look at the consequences for LHC physics of his new model that unifies gravity with the electroweak force. He will also investigate the phenomenological consequences of a Supersymmetric extension of this model. The second area concerns the nature of the cosmological singularity. The PI has proposed several novel theories based on modifying gravity and will also consider the experimental consequences of these models. The outreach part of this Career program will consist of the PI giving a two-week course on Music and the Cosmos, which will be hands on presentation on the physics of sound and musical instruments. These lectures will be presented to urban high school students through the Upward Bound Summer Science program at Penn State. The PI will also serve as both a research and long-term career mentor for two minority undergraduate students each year, by creating two summer research positions in his group through this award.

随着弦理论和圈量子引力的出现，对量子引力理论的探索取得了进展，但两者都缺乏与实验的直接联系。 PI 提出了一项五年计划，该计划可以通过开发由标准模型和量子引力之外的理论产生的新模型来解决宇宙学和粒子物理学的基本问题。此外，他还提出了新的观测方案来测试这些模型。 PI 未来五年的长期研究计划集中在两个主题。其中一个是粒子物理与宇宙学的接口，他希望研究他的新模型对大型强子对撞机物理的影响，该模型将引力与电弱力统一起来。 他还将研究该模型的超对称扩展的现象学后果。 第二个领域涉及宇宙奇点的性质。 PI 提出了几种基于修正重力的新颖理论，并将考虑这些模型的实验结果。 该职业计划的外展部分将包括 PI 提供为期两周的音乐和宇宙课程，该课程将亲自演示声音和乐器的物理学。这些讲座将通过宾夕法尼亚州立大学的“Upward Bound Summer Science”项目向城市高中生展示。 PI还将通过该奖项在他的团队中创建两个夏季研究职位，每年担任两名少数族裔本科生的研究和长期职业导师。