Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Vanishing spinor projections in supergravity

  1. Feb 12, 2013 #1
    Hello all
    I am working on a model in D=5 N=2 supergravity where the metric background is described by a time-dependent three brane, with one extra spatial dimension (a brane-world with bulk sort of set up). The vanishing of fermionic variations gives me the following weird projections:
    [itex]\Gamma_t \epsilon = \Gamma_r \epsilon = \Gamma_\theta \epsilon = \Gamma_\phi \epsilon = 0[/itex]
    where [itex]\Gamma[/itex] is the Dirac gamma matrix, [itex]t[/itex] is time and [itex]r,\theta,\phi[/itex] are spherical coordinates on the 3-brane. [itex]\epsilon[/itex] is the N=2 SUSY spinor.
    My question is: What is the physical meaning of these vanishing projections? Any reference that addresses this and similar issues that anyone can recommend?
    Thanks.
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Vanishing spinor projections in supergravity
  1. Maximal supergravity (Replies: 4)

Loading...