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The Verlinde Algebra And The Cohomology Of The Grassmannian
Edward Witten
The article is devoted to a quantum field theory explanation of the relationship (noticed some years ago by Gepner) between the Verlinde algebra of the group at level …
A WZW model based on a non-semi-simple group
C. R. Nappi, E. Witten
We present a conformal field theory which desribes a homogeneous four dimensional Lorentz-signature space-time. The model is an ungauged WZW model based on a central extension of t…
Computing the Complete Massless Spectrum of a Landau-Ginzburg Orbifold
Shamit Kachru, Edward Witten
We develop techniques to compute the complete the massless spectrum in heterotic string compactification on N=2 supersymmetric Landau-Ginzburg orbifolds. This includes not just the…
Quantum Background Independence In String Theory
Edward Witten
Not only in physical string theories, but also in some highly simplified situations, background independence has been difficult to understand. It is argued that the ``holomorphic a…
Space-Time Transitions in String Theory
Edward Witten
Simple mean field methods can be used to describe transitions between different space-time models in string theory. These include transitions between different Calabi-Yau manifolds…
On the Landau-Ginzburg Description of Minimal Models
Edward Witten
The conjecture that minimal models in two dimensions are critical points of a super-renormalizable Landau-Ginzburg model can be tested by computing the path integral of the L…