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Gravity Emerges from Quantum Information, Say Physicists

Thu, 04/01/2010 - 8:22am
Curious Cat Science and Engineering Blog

Gravity Emerges from Quantum Information, Say Physicists

One of the hottest new ideas in physics is that gravity is an emergent phenomena; that it somehow arises from the complex interaction of simpler things.

perhaps the most powerful idea to emerge from Verlinde’s approach is that gravity is essentially a phenomenon of information.

Over recent years many results in quantum mechanics have pointed to the increasingly important role that information appears to play in the Universe. Some physicists are convinced that the properties of information do not come from the behaviour of information carriers such as photons and electrons but the other way round. They think that information itself is the ghostly bedrock on which our universe is built.

Gravity has always been a fly in this ointment. But the growing realisation that information plays a fundamental role here too, could open the way to the kind of unification between the quantum mechanics and relativity that physicists have dreamed of.

This speculative physics is fascinating. Open access paper: Gravity from Quantum Information.

Related: Does Time ExistQuantum Mechanics Made Relatively Simple PodcastsLaws of Physics May Need a RevisionOpen Science: Explaining Spontaneous Knotting

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