Evolution of the Universe through the Planck epoch
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- Sivaram, C. Astrophys Space Sci (1986) 125: 189. doi:10.1007/BF00643984
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The problem of the Universe emerging out of the Planck epoch is discussed. It is pointed out that an earlier exponential expansion phase well before the onset of the GUTs phase transition is essential. Such an expansion can occur owing to the breaking of scale invariance at Planck energies in a unified theory of gravity with other interactions.