English

(Unoriented) T-folds with few T's

High Energy Physics - Theory 2009-06-19 v2

Abstract

We use the combined action of Z_2-chiral reflections (T-dualities) and shifts to build N=1,2 supersymmetric four-dimensional string compactifications with few moduli. In particular, we consider Z_2^4 asymmetric orbifolds of Type IIB on the maximal torus of SO(12) that mimic N=2 Calabi-Yau compactifications with small "effective" Hodge numbers starting from (h_{11}, h_{21})=(1,1). We analyze possible unoriented projections, providing Type I examples with or without open strings. N=1 oriented asymmetric shift-orbifolds of Type IIB with few chiral multiplets are also presented.

Keywords

Cite

@article{arxiv.0901.0113,
  title  = {(Unoriented) T-folds with few T's},
  author = {Pascal Anastasopoulos and Massimo Bianchi and Jose F. Morales and Gianfranco Pradisi},
  journal= {arXiv preprint arXiv:0901.0113},
  year   = {2009}
}

Comments

26 pages, minor corrections, references added

R2 v1 2026-06-21T11:56:55.568Z