Posted on 01/19/2016 5:20:28 PM PST by Reeses
Bizarre quantum bonds connect distinct moments in time, suggesting that quantum links - not space-time - constitute the fundamental structure of the universe.
... A field is a highly entangled system. Different parts of it are mutually correlated: A random fluctuation of the field in one place will be matched by a random fluctuation in another. ("Parts" here refers both to regions of space and to spans of time.)
Even a perfect vacuum, which is defined as the absence of particles, will still have quantum fields. And these fields are always vibrating. Space looks empty because the vibrations cancel each other out. And to do this, they must be entangled. The cancellation requires the full set of vibrations; a subset won't necessarily cancel out. But a subset is all you ever see.
If an idealized detector just sits in a vacuum, it will not detect particles. However, any practical detector has a limited range. The field will appear imbalanced to it, and it will detect particles in a vacuum, clicking away like a Geiger counter in a uranium mine. In 1976 Bill Unruh, a theoretical physicist at the University of British Columbia, showed that the detection rate goes up if the detector is accelerating, since the detector loses sensitivity to the regions of space it is moving away from. Accelerate it very strongly and it will click like mad, and the particles it sees will be entangled with particles that remain beyond its view.
...
(Excerpt) Read more at quantamagazine.org ...
Quantum Weirdness...I think I have their album around here somewhere....
Feynman diagrams are a pictorial representation of a contribution to the total amplitude for a process that can happen in several different ways. When a group of incoming particles are to scatter off each other, the process can be thought of as one where the particles travel over all possible paths, including paths that go backward in time.
( Emphasis mine. )
I already read that article...10 years from now.
I haven’t read the article yet. But I liked it.
Well, Duh!
so is the dow tanking now or next year?
Bookmark... for when I get smarter.
Feynman ping
The Schroedinger edition had a centerfold. It was said to have been a beautiful cat, until you opened the pages in the center of the magazine. Never know what you’ll get.
“You can know when it is published, or where it is published, but not both.”
Thank you for my one hearty laugh of the evening.
Dark ‘noodles’ may lurk in the Milky Way
http://www.eurekalert.org/pub_releases/2016-01/ca-dm011416.php
Perhaps giant gas lenses could be built half the way to the moon to create the biggest telescope ever.
Seeing how “spooky action at a distance” occurs over space and time I don’t know why this new revelation is a surprise.
There’s also some quantum interpretations that have been around for decades that involve going back in time.
The argument updates Gottfried Leibniz and Ernst Mach’s idea that space-time might not be a God-given backdrop to the world, but instead might derive from the material contents of the universe.
...
IIRC Mach was a big influence on Einstein.
Only one person attended Leibniz’s funeral and he was buried in an unmarked grave, which shows you how much his contemporaries appreciated his genius. I don’t think either he or Newton invented calculus, but Leibniz invented a whiz bank notation for it.
Thank you for posting that. I haven’t seen that since the early ‘80’s.
where do I sign?
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.