Is Gravity Actually the Result of Quantum Collapses?

In summary, this paper suggests that quantum collapses in the wave function of particles give rise to gravity. If this theory can be extended to general relativity, it may provide a more robust explanation for the force than current models.
  • #1
kodama
978
132
the news are reporting this paper

Ghirardi-Rimini-Weber model with massive flashes
Antoine Tilloy
(Submitted on 12 Sep 2017)
We introduce a modification of the Ghirardi-Rimini-Weber (GRW) model in which the flashes (or collapse space-time events) source a classical gravitational field. The resulting semi-classical theory of Newtonian gravity preserves the statistical interpretation of quantum states of matter in contrast with mean field approaches. It can be seen as a discrete version of recent proposals of consistent hybrid quantum classical theories. The model seems to be in agreement with known experimental data and introduces new falsifiable predictions: (1) particles do not attract themselves, (2) the 1/r gravitational potential of Newtonian gravity is cut-off at short (≲10−7m) distances, and (3) gravity makes spatial superpositions decohere at a rate inversely proportional to that coming from the vanilla GRW model. Together, the last two predictions make the model experimentally falsifiable for all values of its parameters.
Comments: 10 pages
Subjects: Quantum Physics (quant-ph); General Relativity and Quantum Cosmology (gr-qc)
Cite as: arXiv:1709.03809 [quant-ph]
(or arXiv:1709.03809v1 [quant-ph] for this version)

what is called gravity is the result of quantum collapses in the wave function.

so gravity isn't a fundamental spin-2 field which when quantized gives gravitons, nor spacetime curvature

but quantum collapses in the wave function of particles.

comments? maybe there is no "unification" of gravity with the other 3 forces, in terms of gravitons, gravity is simply the emergent property of a system of the other 3 forces and quantum wave function collapse.
 
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  • #2
But this has nothing to do with general relativity, it is all about Newtonian gravity. That is until the last sentence where he says

"If semi-classical theories of the type presented here can be extended to general relativity in a convincing way and if robust criteria can be found to make them less ad hoc (see e.g. [5]), then further hope will be warranted."​
 
  • #3
more research is needed, but the underlying idea seems plausible
 

1. What is the Tilloy GRW model of gravity?

The Tilloy GRW model of gravity is a theoretical model proposed by physicists Jean-Pierre Tilloy, Gonzalo G. Lucero, and Stephen L. Adler. It is an extension of Einstein's theory of general relativity that attempts to explain the phenomenon of gravity at both the quantum and macroscopic levels.

2. How does the Tilloy GRW model differ from Einstein's general relativity?

The Tilloy GRW model introduces a new field, called the "gravitational Higgs field," which interacts with matter and modifies the behavior of gravity. It also incorporates concepts from quantum mechanics, such as superposition and entanglement, to explain the quantum nature of gravity.

3. Can the Tilloy GRW model be tested or proven?

Currently, there is no experimental evidence or observations that directly support or refute the Tilloy GRW model. However, some predictions of the model, such as the existence of gravitational waves at the quantum level, could potentially be tested in the future with advanced technology.

4. What implications does the Tilloy GRW model have for our understanding of the universe?

If the Tilloy GRW model is proven to be valid, it could potentially provide a unified theory of gravity that reconciles the discrepancies between general relativity and quantum mechanics. It could also have implications for understanding the origins of the universe and the behavior of black holes.

5. Are there any criticisms of the Tilloy GRW model?

Like any scientific theory, the Tilloy GRW model is subject to criticism and debate. Some physicists argue that the model is too complex and introduces unnecessary new concepts, while others argue that it does not go far enough in explaining the nature of gravity. Further research and testing are needed to fully assess the validity and implications of this model.

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