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Showing posts with label unfied field theory. Show all posts
Showing posts with label unfied field theory. Show all posts

2010-03-28

Is gravity a phenomenon that emerges from the laws of thermodynamics and information theory?

From Technology Review:

A few month's ago, Erik Verlinde at the the University of Amsterdam put forward one such idea which has taken the world of physics by storm. Verlinde suggested that gravity is merely a manifestation of entropy in the Universe. His idea is based on the second law of thermodynamics, that entropy always increases over time. It suggests that differences in entropy between parts of the Universe generates a force that redistributes matter in a way that maximises entropy. This is the force we call gravity.
Full article


2009-12-17

Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

From PhysOrg.com:

Spacetime, which consists of three dimensions of space and one time dimension, is such a large, abstract concept that scientists have a very difficult time understanding and defining it. Moreover, different theories offer different, contradictory insights on spacetime’s structure. While general relativity describes spacetime as a continuous manifold, quantum field theories require spacetime to be made of discrete points. Unifying these two theories into one theory of quantum gravity is currently one of the biggest unsolved problems in physics.
Full article


2009-08-17

New Law of Physics Could Explain Quantum Mysteries

From PhysOrg.com:

Since the early days of quantum mechanics, scientists have been trying to understand the many strange implications of the theory: superpositions, wave-particle duality, and the observer’s role in measurements, to name a few. Now, a new proposed law of physics that describes the geometry of physical reality on the cosmological scale might help answer some of these questions. Plus, the new law could give some clues about the role of gravity in quantum physics, possibly pointing the way to a unified theory of physics.
Full article


2009-05-18

Is Everything Made of Mini Black Holes?

From PhyOrg.com:

In trying to understand how gravity behaves on the quantum scale, physicists have developed a model that has an interesting implication: mini black holes could be everywhere, and all particles might be made of various forms of black holes.
Continued