On the properties of the transition matrix in bouncing cosmologies

Details On the properties of the transition matrix in bouncing cosmologies On the properties of the transition matrix in bouncing cosmologies

2004-03-17

arxiv.org/abs/hep-th/0403173v1

Phys.Rev. D69 (2004) 107301

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 1 figure, to appear in PRD

Scientific paper

10.1103/PhysRevD.69.107301

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.

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