Quantum Physics: entanglement across the universe (General)

by David Turell , Friday, August 24, 2018, 15:23 (2281 days ago) @ David Turell

Using quasars:

https://www.livescience.com/63398-ancient-quasars-evidence-quantum-entanglement.html?ut...

"sing two ancient galactic cores called quasars, researchers have taken a massive step forward toward confirming quantum entanglement — a concept that says that the properties of particles can be linked no matter how far apart in the universe they may be.

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"Scientists looking to prove quantum entanglement have to show that measured correlations between particles cannot be explained by classical physics, according to a statement from MIT describing the new work. In the 1960s, physicist John Bell calculated a theoretical limit, past which correlations between particles must have a quantum, not a classical, explanation.

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"In the study performed last year, researchers used small telescopes that only allowed them to measure light from stars 600 light-years away, but by using larger, more powerful telescopes, the researchers have now managed to measure the light from much older, more distant quasars.

"In studying entangled photons with these ancient quasars, the team found correlations in over 30,000 pairs of photons. These correlations went well beyond the limit set by Bell, showing that, if there were any classical explanation for the correlated particles, it would have to come from before these ancient quasars emitted light — many billions of years ago.

"'If some conspiracy is happening to simulate quantum mechanics by a mechanism that is actually classical, that mechanism would have had to begin its operations — somehow knowing exactly when, where, and how this experiment was going to be done — at least 7.8 billion years ago," Alan Guth, a physicist at MIT and a co-author of the new work, said in the statement. "That seems incredibly implausible, so we have very strong evidence that quantum mechanics is the right explanation."

"So, with these findings, it is "implausible" that the measured correlations have a classical explanation, the researchers said. This is strong evidence that quantum mechanics caused this correlation and that quantum entanglement is valid, they said.

"'The Earth is about 4.5 billion years old, so any alternative mechanism — different from quantum mechanics — that might have produced our results by exploiting this loophole would've had to be in place long before even there was a planet Earth, let alone an MIT," David Kaiser, also a physicist at MIT and a co-author of the study, added in the statement. "So we've pushed any alternative explanations back to very early in cosmic history.'"

Comment: Quantum mechanics is the basis of reality if entanglement covers the universe.