3 papers
hep-th2000
Type-I vacua and brane transmutation
C. Angelantonj, A. Sagnotti
In a classic paper, Fradkin and Tseytlin showed how magnetic deformations can be introduced in open strings. In this contribution we review some recent work on type-I vacua with ma…
hep-th1999
A Note on non-supersymmetric open-string orbifolds with a quantised B_ab
Carlo Angelantonj
In this short note we review the main features of open-string orbifolds with a quantised flux for the NS-NS antisymmetric tensor in the context of the open descendants of non-super…
hep-th1999
Non-Supersymmetric Open String Vacua
Carlo Angelantonj
We review the construction of non-supersymmetric open string vacua in various dimensions. They can be obtained either projecting the (compactified) non-supersymmetric 0B theory, or…