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May 8, 2013
In less than 100 seconds, Andrew Jaffe explains why cosmologists believe that the universe underwent a period of vast and raid growth when it was just fractions of a second old.
Watch more from our 100 Second Science video series.
Comments on this article are now closed.
After watching What is quantum gravity? I sat up when Andrew Jaffe said "The problem is we don't necessarily have a particle physics theory that explains inflation. Surely relativity explains it?
Edited by John Duffield on May 9, 2013 4:40 PM.
I believe that Inflation can be explained simpler if you inject the Multiverse concept, ie.. mini-Big (or Little )Bangs (ripple) instead of one large event but mutiple.
The inflationary concept (in the Inflationary Big Bang Model), supporting a vacuum-dominated universe (arising out of quantum fluctuations) during phase transition in the early history of the universe was evolved by some cosmologists (Guth 1981; Linde 1982) to circumvent problems of ‘flatness’, ‘horizon’ and the ‘primordial magnetic monopole’ associated with the Big Bang model. The hypothetical inflation field giving rise to inflation, however, is very speculative lacking sound scientific explanation.There is no general consensus among cosmologists regarding the timing of the beginning and end of the inflationary epoch. In Linde’s ‘chaotic inflation’, inflation starts at the Planck time, 10^ -43 sec when the temperature was 10^ 32 K, whereas in other models, inflation starts when the temperature falls to the point (10^ -35 sec after Big Bang when the temperature was ~10^ 28 K) at which the symmetry of the Grand Unified Theory (GUT) is spontaneously broken.