For over a century, physics has grappled with the incompatibility of Einstein's general relativity, governing gravity and large-scale objects, and quantum mechanics, describing the realm of subatomic particles. Now, a study led by Professor Ginestra Bianconi at Queen Mary University of London introduces a novel approach to unify these pillars of science.
Published in Physical Review D, the study, titled "Gravity from Entropy," proposes that gravity is not a fundamental force but an emergent phenomenon linked to quantum relative entropy. This theory suggests that spacetime is not merely a fabric deformed by matter but a quantum system where geometric structure arises from entropy differences. The introduction of the "G field" could explain dark matter and the accelerated expansion of the Universe.
Bianconi's work offers a fresh perspective, potentially leading to a unified theory of quantum gravity and providing insights into the mysteries of dark matter. While further testing is needed, this research challenges traditional concepts of spacetime and gravity.