U.S.-Greece Cooperative Research: Non-Perturbative Modelingof the Quantum Gravitational Back-Reaction on Inflation

这项为期三年的奖项支持佛罗里达大学的理查德·P·伍达德和希腊希腊研究与技术基金会的尼古拉斯·C·萨米斯之间关于量子引力反向反应的非微扰模型的研究。他们的研究目标是开发一种非微扰技术，通过对量子引力的红外扇区进行数值建模，然后通过膨胀的消失来演化宇宙。研究人员在分析微扰问题时使用了FORTH和佛罗里达大学都支持的符号处理程序MATHEMICA。这一共同支持的设施也将使他们目前的研究成为可能。如果研究人员的分析是成功的，就有可能最终预测重新加热的温度、密度波动的光谱和幅度、宇宙对电弱和手征对称破缺相变的反应，以及目前正在经历的任何剩余的膨胀效应。

This three-year award supports research on the non-perturbative modeling of the quantum gravitational back-reaction on inflation between Richard P. Woodard of the University of Florida, and Nicholas C. Tsamis of the Foundation for Research and Technology - Hellas (FORTH) in Greece. The objective of their research is to develop a non-perturbative technique by modeling the infrared sector of quantum gravity numerically and then evolving the universe through the extinction of inflation. The investigators have used the symbolic manipulation program Mathematica, which is supported at both FORTH and the University of Florida, in their analysis of the perturbative problem. This jointly supported facility will also enable their current research. If the investigators' analysis is successful, it may be possible eventually to predict the reheating temperature, the spectrum and magnitude of density fluctuations, for the universe's response to the electroweak and chiral symmetry breaking phase transitions, and for whatever residual inflationary effect is currently being experienced.