3 papers
hep-th1999
Looking beyond the Thermal Horizon: Hidden Symmetries in Chiral Models
B. Schroer, H. -W. Wiesbrock
In thermal states of chiral theories, as recently investigated by H.-J. Borchers and J. Yngvason, there exists a rich group of hidden symmetries. Here we show that this leads to a…
math-ph1998
Modular Theory and Geometry
B. Schroer, H. -W. Wiesbock
In this letter we present some new results on modular theory and its application in quantum field theory. In doing this we develop some new proposals how to generalize concepts of…
math.QA1998
Weak Hopf Algebras and Reducible Jones Inclusions of Depth 2. I: From Crossed products to Jones towers
Florian Nill, Kornel Szlachanyi, Hans-Werner Wiesbrock
We apply the theory of finite dimensional weak C^*-Hopf algebras A as developed by G. Böhm, F. Nill and K. Szlachányi to study reducible inclusion triples of von-Neumann algebras N…