Quantum Signatures of Cosmic Topology: How Casimir Backreaction Transmits Isotropy Violation

arXiv:2603.12319 · hep-th, astro-ph.CO, gr-qc, hep-ph · Submitted 2026-03-12 · Read on arXiv

hep-th, astro-ph.CO, gr-qc, hep-ph

Submitted: 2026-03-12

Updated: 2026-09-08

Comments: 7 pages, 3 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Anisotropy — 11× in this paper · explained in 3 episodes
• Trace — 5× in this paper · explained in 2 episodes
• Homogeneity — 4× in this paper · explained in 2 episodes
• Regularization — 3× in this paper · explained in 3 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Gauge Freedom — 1× in this paper · explained in 2 episodes
• Reheating — 1× in this paper · explained in 2 episodes
• Self-consistency — 1× in this paper · explained in 2 episodes
• Symmetry Breaking — 1× in this paper · explained in 3 episodes

Sources

• Circles in the Sky: Finding Topology with the Microwave Background Radiation
• The significance of the largest scale CMB fluctuations in WMAP
• Constraining the Topology of the Universe
• Extending the WMAP Bound on the Size of the Universe
• Circles-in-the-sky searches and observable cosmic topology in a flat Universe
• Constraints on the topology of the Universe derived from the 7-year WMAP CMB data and prospects of constraining the topology using CMB polarisation maps
• A search for cosmic topology in the final WMAP data
• Planck 2013 results. XXVI. Background geometry and topology of the Universe
• Planck 2015 results. XVIII. Background geometry & topology
• Planck 2018 results. VI. Cosmological parameters
• New Restrictions on Spatial Topology of the Universe from Microwave Background Temperature Fluctuations
• A weak acceleration effect due to residual gravity in a multiply connected universe
• Topology beyond the horizon: how far can it be probed?
• The variance of the CMB temperature gradient: a new signature of a multiply connected Universe
• Constraints On The Topology Of The Universe From The WMAP First-Year Sky Maps
• Imprints of spherical non-trivial topologies on the CMB
• Promise of Future Searches for Cosmic Topology
• Cosmic topology. Part IIa. Eigenmodes, correlation matrices, and detectability of orientable Euclidean manifolds
• Cosmic topology. Part IIb. Eigenmodes, correlation matrices, and detectability of non-orientable Euclidean manifolds
• Topology of the Universe: Theory and Observations

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