93 citations · 153 across the 5 of their papers we have counts for
5 papers
The stack of Yang-Mills fields on Lorentzian manifolds
Marco Benini, Alexander Schenkel, Urs Schreiber
We provide an abstract definition and an explicit construction of the stack of non-Abelian Yang-Mills fields on globally hyperbolic Lorentzian manifolds. We also formulate a stacky…
From Loop Space Mechanics to Nonabelian Strings
Urs Schreiber
Lifting supersymmetric quantum mechanics to loop space yields the superstring. A particle charged under a fiber bundle thereby turns into a string charged under a 2-bundle, or gerb…
Higher Gauge Theory: 2-Connections on 2-Bundles
John Baez, Urs Schreiber
Connections and curvings on gerbes are beginning to play a vital role in differential geometry and mathematical physics -- first abelian gerbes, and more recently nonabelian gerbes…
Discrete Differential Geometry on causal graphs
Eric Forgy, Urs Schreiber
Differential calculus on discrete spaces is studied in the manner of non-commutative geometry by representing the differential calculus by an operator algebra on a suitable Krein s…
DDF and Pohlmeyer invariants of (super)string
Urs Schreiber
We show how the Pohlmeyer invariants of the bosonic string are expressible in terms of DDF invariants. Quantization of the DDF observables in the usual way yields a consistent quan…