论文标题
第三个量化的多元宇宙中的新来宾
A New Guest in the Third Quantized Multiverse
论文作者
论文摘要
在本文中，我们指出了第三个量化形式主义的概念问题，用于规范量子重力。基于未互联纠缠的早期结果，非相互作用的宇宙 - 抗敌人对的图片是不完整的。特别是，纠缠熵与比例因子的变化（理解为时间量度）意味着宇宙对或与热浴的宇宙之间的相互作用，即外部场。我们通过向形式主义添加一个新的量子字段来为问题提出一个简单的解决方案。相应地，该场的颗粒介导了宇宙之间的相互作用 - 取决于树级或一个环的模型 - 并且可以在背景中进一步提供热水浴。
In the present article we point out a conceptual issue of the Third Quantization formalism for Canonical Quantum Gravity. Based on earlier results on interuniversal entanglement, the picture of noninteracting universe-antiuniverse pairs is incomplete. In particular, the variation of the entanglement entropy with the scale factor, understood as a measure of time, implies either an interaction between pairs of universes or universes with a heat bath, i.e. an external field. We propose a simple solution to the problem by adding a new quantum field to the formalism. Correspondingly, particles of this field mediate interactions between universes -- depending on the model at tree level or one loop -- and may further provide a heat bath in the background.
