Recent content by Fractal matter

Is it possible to move Stress-Energy tensor to the left side of EFE? R=T => R-T=0. Relativists move cosmological constant Λ to the right side of EFE. Can we move SE tensor to make a vacuum?

No cloning theorem might mean, that one can't neither remove nor add holes(to preserve topology). Quote: "No-cloning theorem is dual on the gravity side to the no-go theorem for topology change":peace:

Yes, that would be lattice qft. Every qft can be approximated by lattice qft AFAIK.

A also wonder, what does locality really mean? I think this is what unparadoxical presume: SR local, GR not.

ADM formulation is a reformulation of GR. In its decomposition of spacetime, spacelike surfaces parametrized by time are "nonlocal". They are simultaneous. If this is what you're looking for.

Wrong. GR absolutely require "propagating signals". It is a local theory. However, i myself, not quite sure what locality means. It somehow takes time for a cause to make an effect.

I read there are 2 degrees of freedom in GR after boundary conditions specified. Does that mean 2 equations are enough for EFE equivalent? Those two seem like the amplitude and a phase.

Consciousness is not needed in collapse. What happens after collapse is the acquisition of new information. That's my view.

Gravity is invalid at high energies. It is a low energy effective field theory, like, say, hydrodynamics. As an effective theory it has an approximate Lagrangian. Read more here (from the author of the classic paper on QG)...

I think, ordering means specifying the predecessor and successor to each node of the graph.

I hope, i can be of some help. As far as i am aware, condensate, posessing Lorentz invariance in the ground state, can be thought of as a pseudovacuum. In that case the anwers would be : 1) Yes. 2) Yes. I don't know if the violation of the energy conservation can take place. 3) "It is proposed...

I am very much interested in the subject. My view is very well described in the article by Giulio Prisco - "Down in the fractal depths of quantum matter and space-time". The world, it seems, can be described as infinite series of approximations/effective fields. I'm convinced, physicists are...

"The incompleteness theorems apply only to formal systems which are able to prove a sufficient collection of facts about the natural numbers." "For any such consistent formal system, there will always be statements about natural numbers that are true, but that are unprovable within the system."...

There is also Causal dynamical triangulation where spacetime is made of simplexes(higher dimensional triangles).

Can you give an example please ? I'm interested in all the cases in which the effective theory doesn't have quasiparticles.