About

Steven Hoffmann

Research focus

I study early–universe vacuum decay and brane nucleation in a two–field model (SFV/dSB). The current work presents an O(4)–symmetric two-field bounce with a benchmark Euclidean action SE ≈ 1078, together with full derivations and a reproducibility bundle (code, configs, CSVs, logs) to regenerate all figures.

  • Primary area: astro-ph.CO (Cosmology and Nongalactic Astrophysics)
  • Secondary interest: hep-ph (portal couplings, phenomenology)

Methods at a glance

  • Collocation BVP with analytic Jacobian; wall-clustered mesh
  • Continuation in g to manage stiffness and avoid trivial solutions
  • Robustness checks: node-doubling, +50% box size, tolerance sweeps (ΔSE/SE < 1%)
  • Curvature (CDL/HM) checks at the benchmark

Artifacts (reproducibility)

If any link is missing, email me and I’ll provide a permanent archive/DOI.

Background

I am an independent researcher with a technical background in computing. My focus here is to produce results that are verifiable and useful to the community: clear derivations, documented numerics, and shareable data. I welcome feedback, replication attempts, and collaboration.

Notes

  • I am not affiliated with an academic institution; work is self-funded.
  • I support open review: please report issues or suggestions via email or GitHub.