The Formulation of Quantum Field Theory in Curved Spacetime

The Formulation of Quantum Field Theory in Curved Spacetime
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弯曲时空量子场论的表述

DOI:
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发表时间:
2009
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通讯作者:
R. Wald
R. Wald
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作者:
R. Wald

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闵可夫斯基时空中量子场论的通常公式都利用了庞加莱对称性、总能量的正性以及唯一的庞加莱不变真空态的存在。量子场论的这些和其他关键特征并不能直接推广到弯曲时空。我们讨论了在弯曲时空中形成量子场论的概念障碍,以及如何克服这些障碍。
The usual formulations of quantum field theory in Minkowski spacetime make crucial use of Poincare symmetry, positivity of total energy, and the existence of a unique, Poincare invariant vacuum state. These and other key features of quantum field theory do not generalize straightforwardly to curved spacetime. We discuss the conceptual obstacles to formulating quantum field theory in curved spacetime and how they can be overcome.