It is generally accepted that the Copenhagen interpretation is inapplicable to quantum cosmology, by contrast with the many worlds interpretation. I shall demonstrate that the two basic principles of the Copenhagen interpretation, the principle of wholeness and the principle of complementarity, do make sense in quantum gravity, since we can judge about quantum gravitational processes in the very early Universe by their vestiges in our macroscopic Universe. I shall present the extended phase space approach to quantum gravity and show that it can be interpreted in the spirit of the Everett’s “relative states” formulation, while there is no contradiction between the “relative states” formulation and the mentioned basic principles of the Copenhagen interpretation.

中文翻译：

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哥本哈根解释不适用于量子宇宙论吗？

与许多世界的解释相反，公认的哥本哈根解释不适用于量子宇宙论。我将证明哥本哈根解释的两个基本原理，即整体性原理和互补性原理，在量子引力中确实有意义，因为我们可以通过我们在宏观宇宙中的痕迹来判断早期宇宙中的量子引力过程。 。我将介绍量子引力的扩展相空间方法，并表明它可以埃弗里特“相对状态”表述的精神来解释，而“相对状态”表述与哥本哈根的上述基本原理之间并不矛盾。解释。