Publications (6)
Topological charge unfreezing with AMReX
Dean Howarth, Adam J Peterson
A new approach to the problem of topological freezing in gauge theories is introduced in which a physical volume preserving coarsening of the lattice induces sufficient energy vari…
More on Two-Dimensional Models with Supersymmetry
Adam J Peterson, Evgeniy Kurianovych, Mikhail Shifman
We study the behavior of two dimensional supersymmetric connections of copies of models with an heterotic deformation generated by a right moving f…
Gapless excitations of axially symmetric vortices in systems with tensorial order parameter
Adam J Peterson, Mikhail Shifman
We extend the results of previous work on the vortex order parameter in systems similar to the Ginzburg-Landau description of superfluid He in the bulk B phase. Specifically, w…
Code generation for AMReX with applications to numerical relativity
Adam J Peterson, Don Willcox, Phillip Moesta
We present a new python/SymPy based code generator for producing executable numerical expressions for partial differential equations in AMReX-based applications. We demonstrate the…
Low energy dynamics of gapless and quasi-gapless modes of vortices in superfluid He-B
Adam J Peterson, Mikhail Shifman
We discuss the low energy effective dynamics of gapless excitations of the mass vortices of systems similar to the Ginzburg-Landau description of superfluid helium-3 in the bulk B…
Deformation of the CP(1) model leading to fixed size solitons in 2+1 dimensions
Adam J Peterson
We discuss static particle-like solitons in the 2+1 dimensional CP(1) model with a small mass deformation preserving a symmetry in the Lagrangian. Due to the…