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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2026-06-11 23:58 |
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Conference: Bucharest University Faculty of Physics 2026 Meeting
Section: Theoretical and Computational Physics, Applied Mathematics
Title:
Extended Entangled Relativity with an effective cosmological constant
Authors:
Josuah MEA (1)
*
Affiliation:
1) Faculty of Physics, University of Bucharest, 405 Atomistilor street, Magurele, RO-077125
E-mail
josuah-ayrton.mea@s.unibus.ro
Keywords:
Modified Gravity, Machian theory, Cosmology
Abstract:
General Relativity, despite its successes, violates the Mach principle by admitting vacuum solutions where spacetime curvature exists without matter. Entangled Relativity was proposed as a Machian alternative: the action is constructed so that no consistent matter‑free theory can be defined. Recently, an extension of Entangled Relativity was introduced that incorporates a positive cosmological constant while preserving this Machian property. Remarkably, for matter fields satisfying the on‑shell condition Lm = T (e.g., dust and radiation), the theory dynamically reduces to General Relativity with a positive cosmological constant. The dimensionful cosmological constant is replaced by a single dimensionless parameter, from which an effective Λ emerges in the field equations. This framework therefore reproduces the successful ΛCDM phenomenology in the regimes where matter fulfills Lm = T, yet it remains fundamentally different: it involves one fewer free parameter and inherently links the existence of spacetime to the presence of matter. I will present the key features of this extended theory and discuss how it respects the relativity of inertia.
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