Stable non-BPS D-branes of type I

  title={Stable non-BPS D-branes of type I},
  author={Marialuisa Frau and Laurent Gallot and Alberto Lerda and P. Strigazzi},
  journal={arXiv: High Energy Physics - Theory},
We review the boundary state description of the non-BPS D-branes in the type I string theory and show that the only stable configurations are the D-particle and the D-instanton. We also compute the gauge and gravitational interactions of the non-BPS D-particles and compare them with the interactions of the dual non-BPS particles of the heterotic string finding complete agreement. In this way we provide further dynamical evidence of the heterotic/type I duality. 

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