Browsing by Subject "Curved spacetime"

Now showing items 1-2 of 2

    • Do electromagnetic waves always propagate along null geodesics? 
      Asenjo, Felipe A.; Hojman Guiñerman, Sergio (IOP Publishing Ltd, 2017)
      We find exact solutions to Maxwell equations written in terms of fourvector potentials in non-rotating, as well as in Gdel and Kerr spacetimes. We show that Maxwell equations can be reduced to two uncoupled secondorder ...
    • On the possibility of non-geodesic motion of massless spinning tops 
      Armaza, Cristóbal; Hojman Guiñerman, Sergio; Koch, Benjamín; Zalaquett, Nicolás (IOP Publishing, 2016)
      The motion of spinning massless particles in gravitationally curved backgrounds is revisited by considering new types of constraints. Those constraints guarantee zero mass (P mu P mu = 0) and they allow for the possibility ...