Initial conditions problem in cosmological inflation revisited

David Garfinkle, Anna Ijjas, Paul J. Steinhardt

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We present first results from a novel numerical relativity code based on a tetrad formulation of the Einstein-scalar field equations combined with recently introduced gauge/frame invariant diagnostics. The results provide support for the argument that inflation does not solve the homogeneity and isotropy problem beginning from generic initial conditions following a big bang.

Original languageEnglish (US)
Article number138028
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - Aug 10 2023

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


  • Cosmic inflation
  • Initial conditions problem
  • Numerical relativity


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