Time Evolution as a Gauge Transformation: x^5-dependent Cosmological Solution in 5d Kaluza-Klein Theory

Details Time Evolution as a Gauge Transformation: x^5-dependent Cosmological Solution in 5d Kaluza-Klein Theory Time Evolution as a Gauge Transformation: x^5-dependent Cosmological Solution in 5d Kaluza-Klein Theory

2000-11-21

arxiv.org/abs/hep-th/0011184v2

Phys.Lett. B500 (2001) 209-214

Physics

High Energy Physics

High Energy Physics - Theory

latex, 14pages

Scientific paper

10.1016/S0370-2693(01)00043-0

We discuss a new feature of the 5d Kaluza-Klein cosmology. For that purpose, we obtain the simplest x^5-dependent solution which, in the reduced description, is associated with a radiation-dominated Robertson-Walker universe, and also can be regarded as an extension of the Schwarzschild solution. This solution enables us to deduce an important result that an evolving universe is related with a static universe by the gauge transformation, i.e., they are gauge equivalent. This means that having a different universe simply corresponds to choosing a different gauge

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