Phys. Rev. D 69, 107301 (2004) [4 pages]Properties of the transition matrix in bouncing cosmologiesReceived 27 January 2004; published 14 May 2004 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. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.69.107301
DOI:
10.1103/PhysRevD.69.107301
PACS:
98.80.Cq, 98.70.Vc
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