534 citations · 3.1k across the 77 of their papers we have counts for
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Trace anomalies and the string-inspired definition of quantum-mechanical path integrals in curved space
K. Schalm, P. van Nieuwenhuizen
We consider quantum-mechanical path integrals for non-linear sigma models on a circle defined by the string-inspired method of Strassler, where one considers periodic quantum fluct…
The large limit of four-point functions in N=4 super-Yang-Mills theory from anti-de Sitter Supergravity
Gordon Chalmers, Koenraad Schalm
We compute the imaginary part of scalar four-point functions in the AdS/CFT correspondence relevant to N=4 super Yang-Mills theory. Unitarity of the AdS supergravity demands that t…
Mode regularization, time slicing, Weyl ordering and phase space path integrals for quantum mechanical nonlinear sigma models
Fiorenzo Bastianelli, Koenraad Schalm, Peter van Nieuwenhuizen
A simple, often invoked, regularization scheme of quantum mechanical path integrals in curved space is mode regularization: one expands fields into a Fourier series, performs calcu…