Harvinder K. Jassal


Research Summary:

I have studied some cosmological consequences of the five dimensional, two brane Randall-Sundrum brane scenario. The radius of the compact extra dimension is taken to be time dependent. It is shown that the cosmology consistent with the two brane Randall-Sundrum model is a power law expansion of the universe, with scale factor growing as $t^{1/2}$.

The two branes tend to move towards each other with time. Some comments have been made on the contribution of surface terms in deriving the four dimensional effective action.


Publications:

  1. Invited article: Classical string propagation in gravitational fields" with A. Mukherjee, to appear in 75th anniverary issue of Indian Journal of Physics.

Visits to other Institutes:

  1. Visited Centre for theoretical studies, I.I.Sc., Bangalore, October 25-November 5, 2001.
  2. Visited Institute of Mathematical Sciences, Chennai, November 5-November 10, 2001.

Invited Lectures/Seminars:

  1. Lecture on ``Rainbow formation'' in Rajbhasha Workshop for school children, Harish-Chandra Research Institute, May 13, 2001.
  2. Seminar on Classical string propagation in gravitational fields, Harish-Chandra Research Institute, Allahabad, July 4, 2001.
  3. Seminar on Inflation in brane world cosmology, Centre for Theoretical Studies, I.I.Sc., Bangalore, November 4, 2001.
  4. Seminar on Inflation in brane world cosmology, Institute of Mathematical Sciences, Chennai, November 8, 2001.


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