IPM Positions

Non Resident Researcher, School of Physics (2003 - 2004 )

Non IPM Affiliations

Assistant Professor of Shahid Rajaee University

Research Interests

Cosmology and Physics of Early Universe , Quantum Cosmology, Quantum Gravity

Research Activities

We investigate a conformal invariant gravitational model which is taken to hold at pre-inflationary ara. The conformal invariance allows to make a dynamical distinction between the two unit systems usually used in cosmology and elementary particle physics. At late times this model provides a machanism which makes a large effective cosmological constant relax to a sufficiently small value. It also consider the conformed factor as a ruintessance field that causes the universe to accererate.

Present Research Project at IPM

Conformal Invariance and the Cosmological Constant Problem

Related Papers

1.	Y. Bisabr Mach's Principle and Model for a Broken Symmetric Theory of Gravity  (Preprint) [abstract] arXive.org link: gr-qc/0302102 [ abs, src, ps, others], cited by Code: IPM/P-2003/099

2.	Y. Bisabr Conformal Invariance, Accelerating Universe and the Cosmological Constant Problem  (Preprint) [abstract] arXive.org link: hep-th/0306192 [ abs, src, ps, others], cited by Code: IPM/P-2003/100