The Universe Before the Big Bang

The Universe Before the Big Bang

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Terms such as qexpanding Universeq, qbig bangq, and qinitial singularityq, are nowadays part of our common language. The idea that the Universe we observe today originated from an enormous explosion (big bang) is now well known and widely accepted, at all levels, in modern popular culture. But what happens to the Universe before the big bang? And would it make any sense at all to ask such a question? In fact, recent progress in theoretical physics, and in particular in String Theory, suggests answers to the above questions, providing us with mathematical tools able in principle to reconstruct the history of the Universe even for times before the big bang. In the emerging cosmological scenario the Universe, at the epoch of the big bang, instead of being a qnew born babyq was actually a rather qagedq creature in the middle of its possibly infinitely enduring evolution. The aim of this book is to convey this picture in non-technical language accessibile also to non-specialists. The author, himself a leading cosmologist, draws attention to ongoing and future observations that might reveal relics of an era before the big bang.... 136 Hartle, J., 147 Hawking, S., 68, 87, 99, 147 Heisenberg uncertainty principle, 54, 126, 160 hierarchy problem, 185 ... 50, 76, 77, 80, 89, 104, 111 time , 132 Hulse, R., 97 hyperbolic geometry, 29 inflation, 12, 15, 34, 75, 77a€“91, 135, 136, anbsp;...

Title:The Universe Before the Big Bang
Author: Maurizio Gasperini
Publisher:Springer Science & Business Media - 2008-10-08

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