Causality, Time Arrow and Half Cycling Universe

Details Causality, Time Arrow and Half Cycling Universe Causality, Time Arrow and Half Cycling Universe

1998-04-13

arxiv.org/abs/gr-qc/9804031v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages

Scientific paper

If one introduces causality into quantum cosmology, then the prescription for the no-boundary universe should be revised. We show that the thermodymanic arrow of time associated with the perturbation modes should be reversed at the maximum expansion for the oscillating Hawking model. To an observer equipped with the time arrow, the universe will terminate its evolution after an half cycle.

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