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Simulation Shows Potential for Glowing Gravitons:
Where there is energy, there is gravity. And photons—massless packets of light energy—can, in exceedingly rare cases, spontaneously transform into gravity particles, according to Douglas Singleton, a physicist at California State University, who was not involved with the new study. The reverse happens, too, he says: gravitons can become photons. The new analysis considers a mechanism by which gravitons could unleash many billions of times more photons than earlier research suggested—making it easier to confirm their existence.
“A primitive estimate based on intensities [of gravitons] in the vicinity of black hole mergers came close” to numbers that would produce detectable light, says Raymond Sawyer, the study's author and a physicist at the University of California, Santa Barbara.
[...] Events such as black hole mergers should create the necessary conditions to send out photons in the form of radio waves with wavelengths many kilometers long. This signal would be extremely faint but perhaps possible to pick up from Earth. Events somewhat more violent than previously observed mergers could do it, Sawyer says. Scientists would have to tease the glow of the resulting radio waves from that of interfering gases.
First, though, theorists must check if the model holds up. Sawyer hopes future simulations will prove that photon bursts also occur in more realistic models of intense gravitational events, where many gravitons swirl in intricate patterns. Singleton agrees that the problem needs more computational firepower: current analyses are “gross simplifications,” he says. “The idea is to get people interested enough to do the heavy calculations.”
Journal Reference:
Raymond Sawyer. Seeing Gravitons in Colliding Gravitational Waves, Physics (DOI: 10.1103/PhysRevLett.124.101301)
(Score: 4, Insightful) by Mojibake Tengu on Tuesday July 14 2020, @10:38AM (1 child)
Yes, as I well remember, in 70' to early 80' there was a Grand Unification Theory based on multilinear Grassmann algebra apparatus, which explained gravitation quite well with graviton-gravitino interaction. And, surprisingly, predicted the local inversion of time possible. I have read about it in detail report in polish scientific magazine Problemy, about the same time when the then current Neutron Bomb was a big media story in politics.
However, none of this survived for history: the theory itself was dismissed and outright banned in physics, the magazine Problemy itself was completely deleted from science immediately after fall of communism, and even a neutron bomb is an absolute MIC taboo today, maybe because of the only state producing them at industrial scale.
What remains is the math, but even the Grassmann algebra did not come out of this suppression unscathed, as I witness on current Wikipedia.
I recommend to look into old math books (Saunders, McLane and possibly Grassmann himself). The most precious information is, how many and which grassmannian generators the specific GUT algebra needs.
Respect Authorities. Know your social status. Woke responsibly.
(Score: 2) by zeigerpuppy on Tuesday July 14 2020, @11:14AM
That sounds really fascinating.
I have been interested for a while in theories which allow temporal inversion.
There are two-time theories (Itzhak Bars) but these generally rely on the second time being folded (as in M theory).
A theory that allows temporal inversion in a relativistic frame is quite a feat, but could provide a bridge between informational theories and quantum field theory. There can then be sidewards flow of time, eddies allowing recursion and the evolution of states with some independence. This could help to explain entanglement, a sort of out-of-stepness in 2T.
I'd be interested in reading more about the Polish work.