Orientifolds with discrete torsion

Details Orientifolds with discrete torsion Orientifolds with discrete torsion

2000-02-14

arxiv.org/abs/hep-th/0002103v2

JHEP 0007 (2000) 040

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 48 pages, v2: several misprints and sign errors corrected, clarifications and references added

Scientific paper

10.1088/1126-6708/2000/07/040

We show how discrete torsion can be implemented in D=4, N=1 type IIB orientifolds. Some consistency conditions are found from the closed string and open string spectrum and from tadpole cancellation. Only real values of the discrete torsion parameter are allowed, i.e. epsilon=+-1. Orientifold models are related to real projective representations. In a similar way as complex projective representations are classified by H^2(Gamma,C^*)=H^2(Gamma,U(1)), real projective representations are characterized by H^2(Gamma,R^*)=H^2(Gamma,Z_2). Four different types of orientifold constructions are possible. We classify these models and give the spectrum and the tadpole cancellation conditions explicitly.

Affiliated with

Also associated with

No associations

Rating

Orientifolds with discrete torsion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Orientifolds with discrete torsion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orientifolds with discrete torsion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-367333