Found 2 result(s)

05.10.2017 (Thursday)

On self-dual N=4 theories

Regular Seminar Inaki Garcia Etxebarria (MPI Munich)

at:
2:00 QMW
room 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 IC
room 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.