物理观察者I：绝对场和相对场
The physical observer I: Absolute and relative fields
摘要：
量子喷流理论（QJT）是QFT的变形，其中也考虑了观察者的量子动力学。这是通过引入相对场来实现的，相对场由相对于观察者位置的杆测量的位置来标记。在哈密顿形式中，观测者的动量被修正为：p_i \to p_i - P_i，其中P_i是场量子携带的动量。以自由标量场、自由电磁场和重力场为例进行了讨论。标准的QFT结果恢复的限制，观察者的质量M \to \infty和它的电荷e \to 0。这个极限是很好定义的，除了重力，因为在那种情况下e = M（重质量等于惰性质量）。在一个配套文件中，我们描述了QJT也导致新的依赖于规范和差异异常，这不能在QFT适当制定。
英文摘要：
Quantum Jet Theory (QJT) is a deformation of QFT where also the quantum dynamics of the observer is taken into account. This is achieved by introducing relative fields, labelled by locations measured by rods relative to the observer's position. In the Hamiltonian formalism, the observer's momentum is modified: p_i \to p_i - P_i, where P_i is the momentum carried by the field quanta. The free scalar field, free electromagnetism and gravity are treated as examples. Standard QFT results are recovered in the limit that the observer's mass M \to \infty and its charge e \to 0. This limit is well defined except for gravity, because e = M in that case (heavy mass equals inert mass). In a companion paper we describe how QJT also leads to new observer-dependent gauge and diff anomalies, which can not be formulated within QFT proper.
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