Can a non-local manifold coexist with a spacetime manifold?

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Discussion Overview

The discussion revolves around the possibility of creating a non-local manifold that coexists with the spacetime manifold, particularly in the context of quantum correlations. Participants explore the nature of non-local manifolds and their potential embeddings within higher-dimensional spaces.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the definition of a 'non-local manifold' and proposes that spacetime manifolds can be embedded in higher-dimensional manifolds.
  • Another participant suggests that a non-local manifold could allow for scenarios where the speed of light is not the limit, raising questions about how to embed such manifolds with different speed constraints.
  • A further contribution emphasizes that a manifold has no geometric content but can have various metrics, discussing the implications for embedding pseudo-Riemannian manifolds in fiber bundles.
  • One participant expresses uncertainty about the existence of results regarding the embedding of pseudo-Riemannian manifolds in fiber bundles with degenerate metrics.

Areas of Agreement / Disagreement

Participants express differing views on the definition and implications of a non-local manifold, with no consensus reached on how such a manifold could coexist with the spacetime manifold or on the feasibility of specific embeddings.

Contextual Notes

The discussion includes assumptions about the nature of manifolds and metrics, as well as the implications of embedding theories, which remain unresolved and depend on specific definitions and contexts.

cube137
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Is it possible to create a non-local manifold that co exist with the spacetime manifold? The non-local manifold being where quantum correlations took place. How do you make the two manifolds co-exist?
 
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What do you mean by a 'non-local manifold'?

Certainly the spacetime manifold can be embedded in manifolds with sufficiently higher dimensionality. In fact, infinitely many spacetime manifolds can be thus embedded in the same higher-dimensional space.
 
andrewkirk said:
What do you mean by a 'non-local manifold'?

Certainly the spacetime manifold can be embedded in manifolds with sufficiently higher dimensionality. In fact, infinitely many spacetime manifolds can be thus embedded in the same higher-dimensional space.

A manifold where c is not the limit.. to account for possible quantum correlation channel.. so how do you embed manifolds where c is the limit to one where c is a billion times the limit?
 
A manifold has no geometric content, only topology. You can equip a given manifold with many different metrics, giving it different geometries. Normally, Newtonian physics is considered to be defined by a fiber bundle rather than a manifold with metric because there is no non-degenerate metric. The most famous embedding results are about isometric embedding of arbitrary lower dimension Riemannian manifolds in higher dimensional manifold with Euclidean metric.

Relativity has a pseudo-Riemannian metric. The signature (not all +) is what gives an invariant speed.

So, it seems you are asking about ways of embedding a pseudo-Riemannian manifold in a fiber bundle (or a manifold with degenerate metric of a certain type). I have not heard of any results of this kind. Perhaps someone else can answer this re-phrased question, if it is representative of what you are after.
 

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