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arXiv · hep-th/9812158

Orientifolds of Non-Supersymmetric Asymmetric Orbifolds

Ralph Blumenhagen·Lars Goerlich
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Abstract

We consider certain four dimensional supersymmetric and non-supersymmetric asymmetric orbifolds with vanishing cosmological constant up to two loops and gauge the world sheet parity transformation. This leads to new string vacua, in which Dp and D(p-4) branes or Dp and anti-D(p-4) are identified. Moreover, it is shown that different degrees of supersymmetry can be realized in the bulk and on the brane. We show that for non-supersymmetric models the cosmological constant still vanishes at one loop order.

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Ralph Blumenhagen, Lars Goerlich. 1999-01-15. Orientifolds of Non-Supersymmetric Asymmetric Orbifolds. https://doi.org/10.1016/s0550-3213(99)00241-2

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