What question did this study set out to answer?

The study aims to introduce the Biverso framework, examining the properties of a dual cosmological system connected by conservation laws.

May 30, 2026Open Access

The Biverso: A Specular Universe Framework with Coupled Conservation Laws, Cyclic Big Bang, and Resolution of the Baryon Asymmetry

Key Points

The study aims to introduce the Biverso framework, examining the properties of a dual cosmological system connected by conservation laws.
Presented a dual universe framework consisting of observable universe U and specular universe Ū.
Described the connection through Einstein-Rosen bridges and defined conservation laws governing both universes.
Identified specific predictions and tensions within the framework, including the σ₈ tension.
Conservation holds to ~99% precision today for both universes' dark matter and visible matter.
Predictions about the cycles and behaviors of both universes are laid out, alongside implications for future observations.
Observed relationships help to resolve known cosmic tensions, implying a richer structure of the universe.

Abstract

We present the Biverso framework: a topologically paired cosmological system consisting of our observable universe U (with Λ > 0, expanding, dark-matter-dominated in the future) and a specular counterpart Ū (with Λ < 0, contracting, visible-matter-dominated), connected through the Einstein-Rosen bridges of every rotating black hole. The framework is governed by four coupled conservation laws: Ωᵥis (U) + Ωᵥis (Ū) = const and ΩDM (U) + ΩDM (Ū) = const, with the Friedmann equations in each universe carrying opposite cosmological constants ±Λ. When visible matter accretes into a black hole in U, it crosses the ER bridge and emerges in Ū; simultaneously, the CSK mechanism produces dark matter in U. As Ū compresses under Λ < 0, it undergoes a specular Big Bang in approximately 2. 5 Gyr, restarting the cycle. The baryon asymmetry arises from the initial CSK chiral separation retaining matter in U and sending antimatter to Ū. The framework addresses the σ₈ tension (ΩDM (z=2) ≃ 12% of today), is supported by Juodzbalis et al. 2026 (BH-before-stars at z=6. 5), Liu et al. 2026 (Rₐcc (z~6) ~ 400× today), and Antonini et al. 2026 (high-spin second-generation BHs). Five falsifiable predictions are presented. Conservation holds to ~99% precision today. Global conservation requires HU = |H_Ū|; deviation ~1% per epoch. ER bridge traversability remains an open problem requiring quantum gravity.

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