Topological dark energy, driven by instanton nucleation from spacetime foam, fits cosmological data no better than ΛCDM in the flat case and only marginally better in the non-flat case, with BIC favoring ΛCDM.
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Topological dark energy from spacetime foam: A challenge for $\Lambda$CDM
Topological dark energy, driven by instanton nucleation from spacetime foam, fits cosmological data no better than ΛCDM in the flat case and only marginally better in the non-flat case, with BIC favoring ΛCDM.