Stable D-branes , calibrations and generalized

  title={Stable D-branes , calibrations and generalized},
  author={Paul Koerber},
  • Paul Koerber
  • Published 2008
We introduce generalized calibrations that take into account the gauge field on the D-brane so that calibrated submanifolds minimize the Dirac-Born-Infeld energy. We establish the calibration bound and show that the calibration form is closed in a supersymmetric background with non-vanishing NS-NS 3-form H and dilaton Φ. We show that the calibration conditions are equivalent to the existence of unbroken supersymmetry on the D-brane. We study the problem of supersymmetric D-branes in the… CONTINUE READING
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