论文标题
田地的基础性
The Fundamentality of Fields
论文作者
论文摘要
关于量子场理论在底部是否是字段或颗粒的量子理论存在争议。一个人可以使用波函数在字段配置或粒子方法上使用粒子配置上的波函数采用字段方法，使用波函数。本文主张采用现场方法，在粒子方法上提出了三个优点：（1）粒子波函数对于光子不可用，（2）电子的经典野外模型给出了与经典粒子模型相比，对自旋和自我相互作用的优越说明，（3）场波的空间似乎比粒子波函数的粒子波的空间更大。本文还介绍了面临野外方法的支持者面临的两个重要任务：（1）将格拉曼的数字合法化或消除用于费米子场值和波功能振幅中的使用，（2）描述量子场如何产生粒子样行为。
There is debate as to whether quantum field theory is, at bottom, a quantum theory of fields or particles. One can take a field approach to the theory, using wave functionals over field configurations, or a particle approach, using wave functions over particle configurations. This article argues for a field approach, presenting three advantages over a particle approach: (1) particle wave functions are not available for photons, (2) a classical field model of the electron gives a superior account of both spin and self-interaction as compared to a classical particle model, and (3) the space of field wave functionals appears to be larger than the space of particle wave functions. The article also describes two important tasks facing proponents of a field approach: (1) legitimize or excise the use of Grassmann numbers for fermionic field values and in wave functional amplitudes, and (2) describe how quantum fields give rise to particle-like behavior.
