Quantum empty Bianchi I spacetime with internal time
Quantum empty Bianchi I spacetime with internal time
复制标题
具有内部时间的量子空比安奇 I 时空
作者：
P. Małkiewicz;P. Peter;S. Vitenti
我们讨论的时间问题，在一个比安奇我量子宇宙学的框架中的奇异性避免。我们表明，时间参数分为两个不同的类，这是这样的波函数的时间发展要么总是导致出现的奇点（快规时间）或总是阻止它发生（慢规时间）。此外，我们发现，在后一种情况下，存在一个渐近制度，独立的时钟选择。这可能指向量子宇宙学中时钟问题的一个可能的解决方案，如果存在一个合适的时钟类，所有这些时钟都产生相同的相关物理结果。
We discuss the question of time in a Bianchi I quantum cosmology in the framework of singularity avoidance. We show that time parameters fall into two distinct classes, that are such that the time development of the wave function either always leads to the appearance of a singularity (fast-gauge time) or that always prevents it from occurring (slow-gauge time). Furthermore, we find that, in the latter case, there exists an asymptotic regime, independent of the clock choice. This may point to a possible solution of the clock issue in quantum cosmology if there exists a suitable class of clocks all yielding identical relevant physical consequences.