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Chaotic inflation with time-variable space dimensions

Nasseri, F ; Sharif University of Technology | 2002

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  1. Type of Document: Article
  2. DOI: 10.1142/S0218271802001834
  3. Publisher: 2002
  4. Abstract:
  5. Assuming the space dimension is not constant but decreases during the expansion of the Universe, we study chaotic inflation with the potential m2φ2/2. Our investigations are based on a model Universe with variable space dimensions. We write down field equations in the slow-roll approximation, and define slow-roll parameters by assuming the number of space dimensions decreases continuously as the Universe expands. The dynamical character of the space dimension shifts the initial and final value of the inflation field to larger values. We obtain an upper limit for the space dimension at the Planck length. This result is in agreement with previous works for the effective time variation of the Newtonian gravitational constant in a model Universe with variable space dimensions
  6. Keywords:
  8. Source: International Journal of Modern Physics D ; Volume 11, Issue 4 , 2002 , Pages 511-526 ; 02182718 (ISSN)
  9. URL: https://www.worldscientific.com/doi/abs/10.1142/S0218271802001834