Generalized Kahler geometry and gerbes
  We introduce and study the notion of a biholomorphic gerbe with connection. The biholomorphic gerbe provides a natural geometrical framework for generalized Kahler geometry in a manner analogous to the way a holomorphic line bundle is related to Kahler geometry. The relation between the gerbe and the generalized Kahler potential is discussed. 
C. M. Hull, U. Lindstr\"om, M. Ro\v{c}ek, R. von Unge and M. Zabzine