Abstract
We elaborate further on the evolution properties of cosmological fluctuations through a bounce. We show this evolution to be describable either by “transmission” and “reflection” coefficients or by an effective unitary S matrix. We also show that they behave in a time reversal invariant way. Therefore, earlier results are now interpreted in a different perspective and put on a firmer basis.
- Received 27 January 2004
DOI:https://doi.org/10.1103/PhysRevD.69.107301
©2004 American Physical Society