Loading...

Observable Effects of Chern-Simons Gravity

Zeynizadeh, Sarang | 2008

262 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 39656 (04)
  4. University: Sharif University of Technology
  5. Department: Physics
  6. Advisor(s): Parvizi, Shahrokh
  7. Abstract:
  8. In low energy limit, some string theory models are described with an effective lagrangian which consist of two term. first is Eistein-Hilbert term and second is chern-simons. Adding the chern-simons term to Eistein-Hilbert lagrangian leads to the new modified field equations which schuwarzshild, Reissner-Nordstrom and FRW metrics satisfy these new modified equations while kerr metric is not a solution for these new fields. Since the gravitational field of spinning objects are similar to electromagnetic field, we expect to observe the chern-simons effects in gravitomagnetic component of the gravitational field. Here, in order to better understanding of subject, we investigate the Maxwell electrodynamics in presence of chern-simons term and then influence of chernsimons gravitation on space-time symmetry would be discuss. For receiving to the observable results, we will consider the modified equations in linear form and obtain gravitomagnetic field for spinning spherical object. As a two important phenomena, Gyroscopic and orbital precession which happen owing to presence of gravitomagnetic fields, would investigate completely also. Influence of chernsimons gravitomagnetic fields on the amount of Gyroscopic and orbital precession would calculate and discuss at the end
  9. Keywords:
  10. Chern-Simons Term ; Parity Violation ; Chern-Simons Gravity ; Gravitomagnetic

 Digital Object List

 Bookmark

No TOC