Multi-scale hierarchy from multidimensional gravity

Jul 6, 2023
14 pages
Published in:
  • Phys.Dark Univ. 42 (2023) 101378
  • Published: Nov 17, 2023
e-Print:
DOI:
Report number:
  • 2307.03005

Citations per year

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Abstract: (Elsevier B.V.)
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. A mechanism for generating small parameters that leads to a successful solution of the problem is proposed. 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 fields and an extra-dimensional metric distribution; these distributions are stabilized at a sufficiently low energy scale.
  • Extra dimension
  • Gravity
  • Higgs
  • Inflation
  • scale: Planck
  • fluctuation: quantum
  • gravitation: higher-dimensional
  • hierarchy
  • inflation
  • stability