Found 2 result(s)

### 05.10.2017 (Thursday)

#### On self-dual N=4 theories

Regular Seminar Inaki Garcia Etxebarria (MPI Munich)

 at: 2:00 QMWroom G.O. Jones 610 abstract:

### 11.06.2014 (Wednesday)

#### Heterotic NS5-branes from closed string tachyon condensation

Regular Seminar Inaki Garcia Etxebarria (MPI, Munich)

 at: 14:00 ICroom H503 abstract: I will show how to construct the familiar heterotic NS5 brane as a topological soliton in a supercritical version of heterotic string theory. Closed string tachyon condensation removes the extra dimensions, leaving the NS5 in 10d, in a process highly reminiscent of the K-theoretical description of type II D-branes, but linking non-trivial gauge bundles and geometry. The construction requires a modification of the anomalous Bianchi identity for H_3 in supercritical heterotic string theory. I will give various proofs for the existence of this modification.