Broken Symmetries in Spacetime with Torsion and Galactic Magnetic Fields without Dynamo Amplification

DOI: 10.4236/ijaa.2012.23022   PDF   HTML     3,997 Downloads   6,533 Views   Citations


Since Kostelecky et al [Phys Rev Lett 100, 111102 (2008)], have shown that there is an intimate connection between spacetime with torsion and the possibility of constraining it to Lorentz violation, a renewed interest in torsion theories of gravity has arised. In this paper, minimal coupling between photons on a torsioned background is shown to allow us to obtain the galactic magnetic field strength μG without dynamo amplification. This agrees with recent results by Jimenez and Maroto (2011) for spiral galaxies, with galactic magnetic field constraints from Dark matter without dy- namo amplification. The approach discussed here allow us to get rid of the unpleasant photon mass by simply consider- ing the Lagrangean cut off for second order torsion terms. Therefore though the gauge and Lorentz symmetries are bro- ken here one does not have to deal with photon masses.

Share and Cite:

L. Andrade, "Broken Symmetries in Spacetime with Torsion and Galactic Magnetic Fields without Dynamo Amplification," International Journal of Astronomy and Astrophysics, Vol. 2 No. 3, 2012, pp. 180-182. doi: 10.4236/ijaa.2012.23022.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] A M Howard and R Kulsrud, Ap J 483 (1997) 483. doi:10.1086/304262
[2] J B Jimenez and A L Maroto, Prog Theor Phys supplement, in press (ar-Xiv:1101.2072).
[3] V de Sabbata and M Gasperini, Phys Rev D (1982).
[4] V. de Sabbata and C. Sivaram, Spin and Torsion in Gravitation (1995) world scientif-ic.
[5] L.C. Garcia de Andrade and C. Sivaram, Ap and Sp Science 209: 109 (1993). doi:10.1007/BF00666441
[6] R Opher and U F Wi-choski, Phys Rev Lett 78 (1997) 787. doi:10.1103/PhysRevLett.78.787
[7] A Kosteleckly, Phys Rev D 69: 105009 (2004). A Kostelecky, N Russell and J Tasson, Phys Rev Lett 100: 111102 (2008).
[8] L C Garcia de Andrade, Phys Lett B (2011).
[9] L C Gar-cia de Andrade, Nucl Phys B (2011).
[10] I. T. Drum-mond and S. J. Hathrell, Phys. Rev. D 22,343 (1980). doi:10.1103/PhysRevD.22.343
[11] B R Heckel, E G Adelberger, C E Cramer, T S Cook, S Schlamminger, and U Schmidt, Phys Rev D 78: 092006 (2008). doi:10.1103/PhysRevD.78.092006

comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.