Quantum Gravity 319.4: Italy Indicates That Bose-Einstein Condensates Can Simulate Non-Existent Curvature of Spacetime



From Osher Doctorow

M. Consoli of Italy (Instituto Nazionale di Fisica Nucleare Catania
Italy) in "Ultraweak excitations of the quantum vacuum as physical
models of gravity," arXiv: 0904.1272 v1 [gr-qc] 8 Apr 2009, 27 pages,
gives a fascinating argument including abundant equations, for GR not
being Fundamental but at most an indirect or derived effect of low
energy quantum fluctuations. The physical vacuum is regarded as a
fluid, a Bose-Einstein condensate (BEC) of elementary quanta. BECs
can simulate and/or reproduce effects of spacetime curvature when
there are low energy fluctuations and their propagation.

Consoli has 64 papers on arXiv, so he is by no means a beginner.

He basically combines classical Newtonian and elementary particle
physics with quantum theory to develop the essentials of a Unification
theory with the other 2 Fundamental Interactions (Electroweak and
Strong) playing the key part instead of Gravitation. In the language
of elementary particle physics, "empty space" is actually a space of
Higgs particles that are Bose Condensed and so is represented as
superfluid medium or quantum liquid.

Since Probable Causation/Influence (PI) views "quantum fluctuations"
are just Probability, gravitation could be regarded as generated by
imposing low-energy (Causal) Probability on quantum or elementary
particle structure, although Consoli is as usual apparently unfamiliar
with PI.

What Consoli does not explain, however, is what the Quantum
Probability represents. If it represents high-energy Probability,
then is this Probability PI, Independent Probability-Statistics,
Conditional Probability, or what? We know from the analogy with
Lucaciewicz/Rational Pavelka, Product/Goguen, and Godel Multivalued
Logics, respectively, and the above 3 types of Probability, that the
Universe is divided into the 3 types of Probability. If Quantum
Probability is Independent Probability-Statistics essentially, then
there is some question about whether it is more fundamental than PI,
to say the least. If Quantum Probability is Conditional Probability,
then the same holds, as I have shown in past posts in this and
previous threads.

Still, the idea that moving from the microscopic "Phase" or
"Dimension" to the macroscopic one introduces gravitation of the GR or
modified GR type is an interesting one.

Osher Doctorow

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