74 citations · 136 across the 4 of their papers we have counts for
4 papers
A Travel-Time Metric
Kenneth Halpern
Inspired by the question of whether one can create a visually informative map in which distances reflect travel-times rather than physical proximity, we examine whether it is possi…
Cross Section and Effective Potential in Asymptotically Free Scalar Field Theories
Kenneth Halpern
In an effort to understand the physical implications of the newly discovered non-trivial directions in scalar field theory, we compute lowest order scattering amplitudes, cross sec…
Non-Trivial Directions for Scalar Fields
Ken Halpern, Kerson Huang
We study the eigenvectors of the renormalization-group matrix for scalar fields at the Gaussian fixed point, and find that that there exist ``relevant'' directions in parameter spa…
Fixed-Point Structure of Scalar Fields
Kenneth Halpern, Kerson Huang
We search for alternatives to the trivial field theory by including arbitrary powers of the self-coupling. Such theories are renormalizable when the natural cutoff dependenci…