#
nLab

type 0 string theory

Contents
### Context

#### String theory

### Ingredients

### Critical string models

### Extended objects

### Topological strings

## Backgrounds

## Phenomenology

# Contents

## Idea

In string theory *type 0* refers to a kind of perturbative string theory where the strings themselves are superstrings (hence have supersymmetry on their worldsheet) but their target spacetime effective field theory is not supersymmetric, in fact does not even contain any fermion fields.

Technically, this comes from one particular choice of GSO projection of the superstring which breaks all target space supersymmetry, in contrast to the other choices of GSO projection which give the type IIA string theory, type IIB string theory.

## References

Application to a variant of AdS-CFT duality, or rather AdS-QCD correspondence:

- Roberto Grena, Simone Lelli, Michele Maggiore, Anna Rissone,
*Confinement, asymptotic freedom and renormalons in type 0 string duals*, JHEP 0007 (2000) 005 (arXiv:hep-th/0005213)

See also

Created on January 21, 2019 at 01:37:29.
See the history of this page for a list of all contributions to it.