在经典物理学中，引入场是为了构建因果和局部的物理定律，《相对论量子场论：第2卷 路径积分形式体系（英文）》以引入场为主要内容，以《相对量子场论（第一卷）》介绍的内容为基础，重新使用了现代路径积分形式，重点关注量子电动力学和色动力学的应用。全书分为8章，具体内容包括量子力学的路径积分公式、标量场的路径积分、费米子场的路径积分、阿贝尔规范场的路径积分、群与李群、量子色动力学的路径积分公式、QCD的重正化、场论中的拓扑对象、异常的有效拉格朗日量、手征性异常的摄动理论等内容。

Dr Michael Strickland is a professor of physics at Kent State University. His primary interest is the physics of the quark-gluon plasma （QGP） and high temperature QFT. The QGP is predicted by QCD to have existed until approximately 10-s seconds after the Big Bang. The QGP is currently being studied terrestrially by experimentalists at the Relativistic Heavy Ion Collider (RHIC） at Brookhaven National Laboratory and the Large Hadron Collider (LHC） at CERN. Dr Michael Strickland has published research papers on various topics related to the QGP,QFT,relativistic hydrodynamics, and many other topics.In addition, he has co-written a classic text on the physics of neural networks.