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Promise of Future Searches for Cosmic Topology
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The shortest distance around the Universe through us is unlikely to be much larger than the horizon diameter if microwave background anomalies are due to cosmic topology. We show that observational constraints from the lack of matched temperature circles in the microwave background leave many possibilities for such topologies. We evaluate the detectability of microwave background multipole correlations for sample cases. Searches for topology signatures in observational data over the large space of possible topologies pose a formidable computational challenge.
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Cited by 1 Pith paper
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Quantum stress-energy at timelike boundaries: testing a new beyond-$\Lambda$CDM parameter with cosmological data
Timelike boundaries sourcing negative, 1/a-scaling vacuum energy fit CMB+BAO data slightly better than LCDM and relax the neutrino-mass constraint, though the preference is only about 2 sigma.
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