Exploring Quantum Graphity Models: Bridging Locality, Geometry, and Relativity

[currojimenez]

Hello all

After reading different things about Bell inequalities, EPR like experiments and the tension with relativity I have discovered the quantum graphity models (http://arxiv.org/abs/hep-th/0611197) where locality and geometry are not fundamental in the Universe and appear only after a phase transition.

As far as I know at the moment it is only a model, similar to Ising one, and not a theory.

However it recovers some intuitions that are growing in my mind after reading more and more about these topics:
1. Locality has only sense in a geometry (where a distance can be defined)
2. Locality is not fundamental or at least it is violated in certain circunstances (EPR, interaction free measurement, delayed choice etc)
3. In consequence geometry it isn't fundamental either.

My only question with this model is the existence of an external time, which is odd for me.

What are your ideas about these kind of models?

 

[AndyW]

Hello!

Thank you for bringing up the topic of quantum graphity models. I am always interested in exploring different theories and models that can help us better understand the fundamental principles of the Universe.

From my understanding, quantum graphity models propose that locality and geometry are not fundamental in the Universe, but rather emerge from a phase transition. This is an interesting concept, as it challenges our traditional understanding of space and time. However, as you mentioned, it is currently only a model and not a fully developed theory.

I think it is important to keep an open mind and explore different possibilities when it comes to understanding the fundamental principles of the Universe. The fact that these models are able to recover some intuitions about locality and geometry is intriguing, and it could potentially lead to new insights and discoveries.

Regarding the concept of an external time in these models, I can understand your hesitation. Time is a fundamental aspect of our everyday lives and it is difficult to imagine a Universe without it. However, in the realm of quantum mechanics, time can be a tricky concept. Some theories suggest that time may not be as fundamental as we once thought, and it could potentially emerge from other underlying principles.

Overall, I think these types of models are worth exploring and can provide valuable insights into the fundamental principles of the Universe. However, more research and testing is needed to fully understand their implications and potential applications. Thank you for bringing up this topic and I look forward to seeing how it develops in the future.