Based on studies by the theoretical physicist David Bohm, Ahmed Farag Ali and Saurya Das published a paper in Physics Letters B last year shedding light on a new model of universal expansion.
Whereas the Big Bang depends on a moment of singularity, such a state is regarded as impossible by physics.
The new theory takes Bohmian quantum trajectories into account in order to correct a classic understanding of spacetime expansion while still using elements of general relativity. Whereas classic trajectories eventually intersect, causing a need for singularities, quantum-corrected trajectories never intersect, thus eliminating a theoretical need for the physically impossible singularity that the Big Bang Theory is based upon.
This new theory, then, keeps the universe at a constant, finite size and an infinite age: perhaps it has always been here, though changing all the time.
The theory makes accurate predictions for the current density of the universe, and Ali and Das suggest their calculations would hold even as a theory of quantum gravity is further formulated.
Could the Big Bang Theory be a misinterpretation of the formation of our universe? Was the universe even ever truly ‘formed’? One thing for sure is that we can expect to learn a lot more about the space around us as technology improves and scientists further their studies of cosmology.
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