125 citations · 564 across the 20 of their papers we have counts for
20 papers
Finite Quantum Fluctuations About Static Field Configurations
Edward Farhi, Noah Graham, Peter E. Haagensen +1
We develop an unambiguous and practical method to calculate one-loop quantum corrections to the energies of classical time-independent field configurations in renormalizable field…
Duality and the Renormalization Group
Peter E. Haagensen
The requirement that duality and renormalization group transformations commute as motions in the space of a theory has recently been explored to extract information about the renor…
Two-Loop Beta Functions Without Feynman Diagrams
Peter E. Haagensen, Kasper Olsen, Ricardo Schiappa
Starting from a consistency requirement between T-duality symmetry and renormalization group flows, the two-loop metric beta function is found for a d=2 bosonic sigma model on a ge…
T-Duality and Two-Loop Renormalization Flows
Peter E. Haagensen, Kasper Olsen
Manifest T-duality covariance of the one-loop renormalization group flows is shown for a generic bosonic sigma model with an abelian isometry, by referring a set of previously deri…
On the Wavefunctional for Two Heavy Color Sources in Yang-Mills Theory
Peter E. Haagensen, Kenneth Johnson
In an abelian gauge theory, the Coulombic potential between two static charges is obtained most directly when a correct separation between gauge-invariant and gauge degrees of free…
Constraints on Beta Functions from Duality
P. H. Damgaard, P. E. Haagensen
We analyze the way in which duality constrains the exact beta function and correlation length in single-coupling spin systems. A consistency condition we propose shows very concise…