2006/12/01 by Daniel Sudarsky · 1 citation
Mathematics · Physics and Astronomy · #Anisotropy #Astrophysics #Black Holes and Theoretical Physics #COSMIC cancer database #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Epistemology #Field (mathematics) #Homogeneous #Homogeneous space #Isotropy #Mathematics #Philosophy #Physics #Quantum field theory #Quantum mechanics #Spacetime #Statistical physics #Theoretical physics #gr-qc
paper · pdf · doi:10.1088/1742-6596/68/1/012029
published as J.Phys.Conf.Ser.68:012029,2007 · Prepared for the proceedings of the conference NEBXII " Recent Developments in Gravity", Napfio Grece June 2006. LateX, 15 pages
arxiv created 2006/12/01 · openalex publication_date 2007/05/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
There is something missing in our understanding of the origin of the seeds of Cosmic Structuture. The fact that the fluctuation spectrum can be extracted from the inflationary scenario through an analysis that involves quantum field theory in curved spacetime, and that it coincides with the observational data has lead to a certain complacency in the community, which prevents the critical analysis of the obscure spots in the derivation. The point is that the inhomogeneity and anisotropy of our universe seems to emerge from an exactly homogeneous and isotropic initial state through processes that do not break those symmetries. This article gives a brief recount of the problems faced by the arguments based on established physics, which comprise the point of view held by a large majority of researchers in the field. The conclusion is that we need some new physics to be able to fully address the problem. The article then exposes one avenue that has been used to address the central issue and elaborates on the degree to which, the new approach makes different predictions from the standard analyses. The approach is inspired on Penrose's proposals that Quantum Gravity might lead to a real, dynamical collapse of the wave function, a process that we argue has the properties needed to extract us from the theoretical impasse described above.