222 citations · 1.4k across the 117 of their papers we have counts for
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Divergences in Scalar Quantum Field Theory: The Cause and the Cure
John R. Klauder
Covariant scalar fields exhibit divergences when quantized in two or more spacetime dimensions: n \geg 2. Does perturbation theory, effective theories, the renormalization group, e…
Coherent states for continuous spectrum operators with non-normalizable fiducial states
Joseph Ben Geloun, Jeff Hnybida, John R. Klauder
The problem of building coherent states from non-normalizable fiducial states is considered. We propose a way of constructing such coherent states by regularizing the divergence of…
The Utility of Affine Variables and Affine Coherent States
John R. Klauder
Affine coherent states are generated by affine kinematical variables much like canonical coherent states are generated by canonical kinematical variables. Although all classical an…
Extension of Berezin-Lieb Inequalities
John R. Klauder, Bo-Sture K. Skagerstam
The Berezin-Lieb inequalities provide upper and lower bounds for a partition function based on phase space integrals that involve the Glauber-Sudarshan and Husimi representations,…
Scalar Field Quantization Without Divergences In All Spacetime Dimensions
John R. Klauder
Covariant, self-interacting scalar quantum field theories admit solutions for low enough spacetime dimensions, but when additional divergences appear in higher dimensions, the trad…