Did the Universe Start at the Planck Scale?
Prof. Dr. Cumrun Vafa in his TASI 2021 lecture asks, “What is the Planck scale physics? We have no idea. We have no good description of Planck scale physics.” It became the headline of a homepage!
As of July 2023 there were 2632 articles within ArXiv alone that were cited when using the words, “Planck Scale Physics” (delimited by quotes. As of July 17, 2023, Google brings up over 55,000 references. Bing has over 72,000! One of the projects of this website will be to identify key studies and to lift up the best of them for purview. For example, within a quick survey of the first ten listed today within ArXiv, these articles caught our attention:
- Multi-scale hierarchy from multidimensional gravity (PDF), Kirill A. Bronnikov, Arkady A. Popov, Sergey G. Rubin, 6 Jul 2023 Abstract: We discuss the way of solving the hierarchy problem. We show that starting at the Planck scale, the three energy scales — inflationary, electroweak and the cosmological ones can be restored. The formation of small parameters is proposed that leads to a successful solution of the problem. The tools involved in the process are f(R) gravity and inhomogeneous extra dimensions. Slow rolling of a space domain from the Planck scale down to the inflationary one gives rise to three consequences: an infinite set of causally disconnected domains (pocket universes) are nucleated; quantum fluctuations in each domain produce a variety of different fields and an extra-dimensional metric distribution; these distributions are stabilized at a sufficiently low energy scale.
- Emergent geometric phase in time-dependent noncommutative quantum system (PDF), Anwesha Chakraborty…
- Seven more to come…
Then there will be ten from the general search engines…
And eventually, there will be the top ten from our visitors’ recommendations…
At that point there will be the Top Ten, a compilation from the 30…
which will ascend to the top of this page. So, there is much more to come…
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