Cosmology of Randall-Sundrum models with an extra dimension stabilized by balancing bulk matter

Jan, 2000
12 pages
Published in:
  • Phys.Lett.B 478 (2000) 285-293
e-Print:
Report number:
  • LANCS-TH-0001

Citations per year

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Abstract:
We provide the cosmological solutions for Randall-Sundrum models with the bulk energy-momentum T^55\hat T^5_5 incorporated. It alters the Friedmann equation for the brane scale factor. We make a specific choice of T^55\hat T^5_5 which is adjusted to stabilize the extra dimension. This makes it possible to compactify the extra dimension with a single positive tension brane, and this model provides a RS-type solution to the cosmological constant problem. When the same idea is applied to the RS model with two branes, the wrong sign of Friedmann equation for the negative tension brane can be resolved and usual FRW cosmology is reproduced for the brane.
  • 04.50.+h
  • 11.25.Mj
  • 98.80.Cq
  • cosmological model
  • tensor: energy-momentum
  • Friedman model
  • membrane model
  • dimension: 5
  • cosmological constant
  • energy: density