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20212026
most citedCosmic topology. Part IIIa. Microwave background parity violation without parity-violating microphysics

7 citations · 16 across the 7 of their papers we have counts for

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astro-ph.CO2026

Beyond the Kullback--Leibler divergence: the likelihood-ratio distribution as a detectability measure

Amirhossein Samandar, Mikel Martin Barandiaran, Linn Htat Lu +13

The Kullback--Leibler (KL) divergence is the expectation value of the log-likelihood ratio between two specified models, evaluated with respect to one of the two models. It provide…

astro-ph.CO2026

Cosmic topology. Part Va. Information content of the observable Universe

Deyan P. Mihaylov, Mikel Martin Barandiaran, Stefano Anselmi +14

If the Universe possesses a compact spatial topology with characteristic scale not much larger than the diameter of the observable Universe, then the associated symmetry transforma…

astro-ph.CO2026

The Topology of the Universe

Craig J. Copi, Deyan P. Mihaylov, Anna Negro +14

Is the Universe infinite in all directions? The only way to know is to look. A non-trivial cosmic topology would imprint subtle signatures on the cosmic microwave background (CMB)…

hep-th2026

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

Anna Negro, Kurt Hinterbichler, Glenn D. Starkman +17

A finite, scheme-independent Casimir contribution to the stress-energy tensor arises naturally for quantum fields in universes with non-trivial spatial topology. We compute this Ca…

astro-ph.CO2026

Cosmic topology. Part IIc. Detectability with non-standard primordial power spectrum

Joline Noltmann, Andrius Tamosiunas, Deyan P. Mihaylov +13

Non-trivial spatial topology of the Universe can imprint potentially observable signatures on the cosmic microwave background (CMB). In this study, we investigate how deviations fr…