Volume 80, Number 2, October 2007
Article Number 20002
Number of page(s) 6
Section General
Published online 18 September 2007
EPL, 80 (2007) 20002
DOI: 10.1209/0295-5075/80/20002

Orbits of particles in noncommutative Schwarzschild spacetime

K. Nozari1, 2 and S. Akhshabi2

1  Centre for Particle Theory, Durham University - South Road, Durham DH1 3LE, UK
2  Department of Physics, Faculty of Basic Sciences, University of Mazandaran - P. O. Box 47416-1467, Babolsar, Iran

received 16 March 2007; accepted in final form 26 August 2007; published October 2007
published online 18 September 2007

By considering particles as smeared objects, we investigate the effects of space noncommutativity on the orbits of particles in Schwarzschild spacetime. The effects of space noncommutativity on the value of the precession of the perihelion of particle orbit and deflection of light ray in Schwarzschild geometry are calculated and the stability of circular orbits is discussed.

02.40.Gh - Noncommutative geometry.
03.65.Sq - Semiclassical theories and applications.
91.10.Sp - Satellite orbits.

© Europhysics Letters Association 2007