Speaker
Description
The constancy of fundamental natural constants (FNCs), such as the fine-structure constant (α), the gravitational constant (G), and the speed of light (c), is a foundational pillar of modern physics. However, persistent observational anomalies—most notably the > 5σ Hubble Tension between early- and late-universe measurements of the Hubble constant—increasingly challenge this paradigm. While theoretical frameworks such as scalar-tensor gravity and string theory naturally suggest temporal or spatial variation of constants, a unified, self-consistent model capable of simultaneously varying α,G, and c within a single geometric framework remains absent.This research proposes to develop a novel cosmological framework grounded in generalization of the Friedmann-Lemaitre-Robertson-Walker (FLRW) metric, incorporating spatial time-flow anisotropy through a new metric ansatz. Within this geometry, FNCs are treated as dynamical fields, evolving with both cosmic time and spatial position. A key postulate of the model is the invariance of the Planck length, which imposes a necessary constraint linking variations of G,ℏand c, ensuring theoretical consistency and testability. The primary aim is to investigate whether such variations can resolve the Hubble Tension and other cosmological anomalies, including the lithium problem and reported spatial variations in α. The methodology involves deriving modified Friedmann equations,vimplementing numerical simulations, and employing advanced statistical and machine learning techniques to constrain the model against premier datasets from Planck, SH0ES, and quasar absorption spectra.
| Stream | Science or Engineering |
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