弯曲时空中的量子场论
粒子物理学中，弯曲时空的量子场论是指将平直时空的量子场论推展到弯曲时空。此理论的一般性预测为：时变重力场或具有视界的非时变重力场皆可导致粒子创生。
应用
此理论最著名的应用为霍金辐射，指出黑洞带有黑体辐射。另一个相关的预测为盎鲁效应，指出加速中的观察者可以观测到真空中出现粒子的热浴，这在惯性观察者是观察不到的。
此外，宇宙暴胀造成的太初密度微扰也可以之计算，而实验上也可透过天文学观测（例如宇宙背景辐射）来验证。
狄拉克方程式也可有弯曲时空中的形式，参见弯曲时空中的狄拉克方程。
量子引力的近似
弯曲时空中的量子场论也可以视作量子引力的初阶近似。更进一步的理论为半古典重力，其考虑了强重力场所造成的粒子创造；此理论仍属古典理论，并且等效原理仍然适用。广义相对论所描述的重力，其不可重整化特性是将重力量子化的主要障碍。[1]
相关条目
参考文献
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