U.S.-France Cooperative Research: Four-dimensional String Theories and Low Energy Effective Lagrangians

这一为期两年的奖项支持东北大学的Tomasz Taylor和法国巴黎理工学院的Ignatios Antoniadis在理论物理方面的美法合作研究。研究人员将研究一种基于四维超弦的粒子物理理论。他们的主要目标是确定描述低能弦激发的物理行为的派生。他们将通过计算相关的弦散射幅度来实现这一点。所得结果将应用于超弦理论中非微扰效应的研究和超对称破缺问题。这两位研究人员都参与了超引力和超弦理论的研究。泰勒博士为这次合作带来了他在超弦理论现象学方面的背景，以及在超对称破缺和时空对称性方面的专业知识。安东尼亚迪斯博士在超弦模式和理论方面的专业知识，以及他参与了四维弦理论及其性质的第一次构建，补充了这一点。他们的共同努力将有助于我们理解超弦理论和弦/粒子界面。超弦理论在粒子物理、现代数学和凝聚态物理等领域具有重要意义。它为自然界的基本相互作用提供了一个统一的框架，并有望成为量子引力理论。

This two-year award supports U.S.-France cooperative research in theoretical physics between Tomasz Taylor of Northeastern University and Ignatios Antoniadis of the Ecole Polytechnique, Paris, France. The investigators will study a theory of particle physics based on four-dimensional superstrings. Their principal objective is to determine the derivation of actions that describe the physics of string excitations at low energies. They will achieve this by computing the relevant string scattering amplitudes. The results will be applied to studies of non- perturbative effects in superstring theory and to the problem of supersymmetry breaking. Both investigators have been involved in research on supergravity and superstring theory. Dr. Taylor brings to this collaboration his background in the phenomenological aspects of superstring theory and expertise on supersymmetry breaking and space-time symmetries. This is complemented by Dr. Antoniadis expertise on superstring modes and theories and his involvement in the first constructions of four-dimensional string theories and their properties. Their combined effort will contribute to our understanding of superstring theory and string/particle interface. Superstring theory is important to the fields of particle physics, modern mathematics and condensed matter physics. It provides a framework of unification for fundamental interactions of nature and holds great promise as a theory of quantum gravitation.