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35 papers · 2 filters
Covariant Quantization of Superstrings Without Pure Spinor Constraints
P. A. Grassi, G. Policastro, M. Porrati +1
We construct a covariant quantum superstring, extending Berkovits' approach by introducing new ghosts to relax the pure spinor constraints. The central charge of the underlying Kac…
Gauge-fixing, semiclassical approximation and potentials for graded Chern-Simons theories
C. I. Lazaroiu, R. Roiban
We perform the Batalin-Vilkovisky analysis of gauge-fixing for graded Chern-Simons theories. Upon constructing an appropriate gauge-fixing fermion, we implement a Landau-type const…
A universal amplitude ratio for the q<4 Potts model from a solvable lattice model
Katherine A. Seaton
The universal amplitude ratio for the ()-state Potts model in two dimensions is determined by using results for the dilute A model in regime 1. The nature of th…
Non-Abelian Wilson Surfaces
Iouri Chepelev
A definition of non-abelian genus zero open Wilson surfaces is proposed. The ambiguity in surface-ordering is compensated by the gauge transformations.
An exact universal amplitude ratio for percolation
Katherine A. Seaton
The universal amplitude ratio for percolation in two dimensions is determined exactly using results for the dilute A model in regime 1, by way of a relationship with…
An analytic torsion for graded D-branes
C. I. Lazaroiu
I consider the semiclassical approximation of the graded Chern-Simons field theories describing certain systems of topological A type branes in the large radius limit of Calabi-Yau…