Fundamental time asymmetry from nontrivial space topology

Details Fundamental time asymmetry from nontrivial space topology Fundamental time asymmetry from nontrivial space topology

2001-11-26

arxiv.org/abs/gr-qc/0111090v5

Phys.Rev. D66 (2002) 047701

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, REVTeX, v5: version published

Scientific paper

10.1103/PhysRevD.66.047701

It is argued that a fundamental time asymmetry could arise from the global structure of the space manifold. The proposed mechanism relies on the CPT anomaly of certain chiral gauge theories defined over a multiply connected space manifold. The resulting time asymmetry (microscopic arrow of time) is illustrated by a simple thought experiment. The effect could, in principle, play a role in determining the initial conditions of the big bang.

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