谢尔特岛会议是科学史上一次著名的会议.主要议题是针对战前遗留的量子力学发散困难和电子电磁自能无穷大问题.兰姆实验表明：量子场论的困境并不是一个无穷大、而是一个有限且很小的量，理论物理学家的任务就是要证明这个量的确存在.贝蒂、费曼?用的重正化方案和施温格所用的哈密顿量正则变换方法使这些困难迎刃而解.美国新生代物理学家几乎独立地完成了量子电动力学的创建.这次会议的成功召开，标志着战后美国物理学已经成熟.

The Shelter Island Conference is a famous conference in the history of science. The main topics are the divergence of quantum mechanics and the infinity of electromagnetic energy. The lamb experiment shows that the dilemma of quantum field theory is not an infinite quantity，but a finite and small quantity. The task of theoretical physicists is to prove that the quantity does exist. The renormalization scheme adopted by Betty and Feynman

and the Hamiltonian regular transformation method used by Schwinger make these difficulties solved. The new generation of physicists in the United States almost independently completed the creation of quantum electrodynamics. The success of this conference made the maturity of American Physics after the war.