148 citations · 216 across the 4 of their papers we have counts for
4 papers
Basic gerbe over non simply connected compact groups
Krzysztof Gawedzki, Nuno Reis
We present an explicit construction of the basic bundle gerbes with connection over all connected compact simple Lie groups. These are geometric objects that appear naturally in th…
Horizon Branes and Chiral Strings
Nuno Reis
In this thesis I present a new type of brane - H-brane - where the role of time in String Theory is considered as a primary concept in the search for still unknown black hole physi…
WZW branes and gerbes
Krzysztof Gawedzki, Nuno Reis
We reconsider the role that bundle gerbes play in the formulation of the WZW model on closed and open surfaces. In particular, we show how an analysis of bundle gerbes on groups co…
H-Branes and Chiral Strings
Ian I. Kogan, Nuno B. B. Reis
We add a simple boundary term to the Polyakov action and construct a new class of D-branes with a single null direction. On the string world-sheet the system is described by a sing…