Mystery Photon Might Be First Evidence for Quantum Gravity（原声文稿）

found the first evidence for quantum gravity.

the 17th dimension with a small zoo of hypothetical particles, it's one photon.

Yes, you heard that right. One single photon.

by the carpet 3 experiment in Russia, and a pair of stuff of light years away.

Photons from it with extremely high an entirely different league.

This photon came in at about times as much energy as the Large Hadron Collider produces.

billion euros of European infrastructure.

And according effects attributable to quantum gravity may emerge at high energies.

This photon is very very surprising.

gamma ray burst might well have produced it.

bursts are sometimes caused when stars die and that can create enormous energies.

billions of light years away and the Photon should never have made it to Earth.

microwave background, even if you leave aside other particles.

And at high enough energies light does interact with other light.

This means that space isn't entirely transparent to photons at high energies.

The photon might have been produced okay, but it should never have arrived on Earth.

went and calculated what the chance is that such a photon would 10 to the minus 96, a number that's roughly comparable more likely that despite the photon appearing together of something else that was wrongly identified as a photon. The authors put the chance of that at about 1 in a 30,000.

matter signal which we talked about the other week. But what could it be?

that something isn't quite right with Einstein's theory of relativity.

the calculations rely on the relativity of velocity.

the laws of physics don't pick out one preferred state of constant motion.

made of quanta of space of spacetime atoms, then it might behave like a sort of medium and then this might not be correct.

with photons of moderate energy and at short distances we never notice.

Go to high energies and large distances and weird things can happen.

But exactly what weird things? Well, that's the problem.

pretty much anything happening and physicists have totally tried it all.

you can make highly energetic photons move faster or slower or further or not as far.

They say it's why I give the paper a 7 out of 10 on the bullshit meter.

anything you like, quantum gravity or otherwise.

That said, this single photon after the single potential dark matter detection or super-high-energy neutrino event, and these subplausibly events that can reveal new physics, which we'd one paper and several thousand physicists trying very hard not to look too excited.

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