According to a recent study, integrating quantum mechanics and Einstein's general relativity into a quantum gravity theory could help solve a significant cosmological mystery.
Scientists have known for almost a century that the cosmos is expanding. However, recent variations in its expansion rate are making us increasingly doubt this understanding.
In 1929, Edwin Hubble became the first to observe that the cosmos expanded. According to his observations, galaxies farther away are vanishing more quickly.
With additional measurements, our understanding of the rate at which the universe expands has become more precise. These days, the Hubble parameter is a valuable tool for measuring this.
However, a significant issue currently exists with these treatments. When looking at the cosmic microwave background (CMB), the glow from the Big Bang, the results are more than 10% better than when using the usual method to look at faraway cosmic objects.
This difference, known as the Hubble strain, makes us reconsider how the world came to be.
The Journal of Classical and Quantum Gravity published a paper by P.K. Suresh and B. Anupama of the University of Hyderabad. They knew how to make these disparate outcomes work together.
They proposed including quantum effects in the mathematical model to determine the growth rate. These interactions include, for instance, particles appearing out of thin air and random changes in the field.
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