Science, Space and Technology News 2024
Sjors Heefer’s PhD research explores gravitational waves and spacetime using Finsler geometry, aiming to reconcile general relativity with quantum mechanics. His findings support the Finslerian nature of spacetime, aligning with gravitational wave observations. Credit: SciTechDaily.comand their relationship with Finsler geometry are providing new insights into spacetime, suggesting ways to harmonize relativity and quantum mechanics.
Due to the curvature, however, these geodesics are not straight in the usual sense at all. In the case of the planets in the solar system, for instance, they describe elliptical orbits around the sun. In this way, general relativity elegantly explains the movement of the planets as well as numerous other gravitational phenomena, ranging from everyday situations to black holes and the big bang. As such it remains a cornerstone of modern physics.
“All matter in our universe appears to be subject to the strange probabilistic laws of quantum mechanics,” Heefer notes. “And the same is true for all forces of nature – except for gravity. This discrepancy leads to deep philosophical and mathematical paradoxes, and resolving these is one of the primary challenges in fundamental physics today.”One approach to resolving the clash of general relativity and quantum mechanics is to expand the mathematical framework behind general relativity.
“Imagine walking towards a point at the top of a hill. Walking up the steep slope towards the point costs you a lot of energy to cover the distance, and it might take you a very long time. The way back down, on the other hand, will be much easier and will take much less time. In Finsler geometry this can be accounted for by assigning a larger distance to the way up than to the way down.”
A simple example would be temperature, for instance; at any given point in time, each point in space has a certain temperature associated with it.
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