212 citations · 1k across the 77 of their papers we have counts for
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Global conformal anomaly in N=2 string
Gordon Chalmers, Warren Siegel
We show the existence of a global anomaly in the one-loop graphs of N=2 string theory, defined by sewing tree amplitudes, unless spacetime supersymmetry is imposed. The anomaly is…
On the finiteness of N=8 quantum supergravity
Gordon Chalmers
We describe the constraints imposed on quantum maximal supergravity theories in perturbation theory by the two duality frameworks: S-duality in superstring theory and the AdS/CFT h…
N=2 Quantum String Scattering
Gordon Chalmers, Olaf Lechtenfeld, Bernd Niemeyer
We calculate the genus-one three- and four-point amplitudes in the 2+2 dimensional closed N=(2,2) worldsheet supersymmetric string within the RNS formulation. Vertex operators are…
Dual expansions of N=4 super Yang-Mills theory via IIB superstring theory
Gordon Chalmers, Johanna Erdmenger
We examine the dual correspondence between holographic IIB superstring theory and N=4 super Yang-Mills theory at finite values of the coupling constants. In particular we analyze a…
S and U-duality Constraints on IIB S-matrices
Gordon Chalmers
S and U-duality dictate that graviton scattering amplitudes in IIB superstring theory be automorphic functions on the appropriate fundamental domain which describe the inequivalent…