Author Topic: Anyons proven to exist  (Read 1124 times)

Online Hydra009

Anyons proven to exist
« on: December 14, 2020, 04:50:26 PM »
Quote
In the three-dimensional world we live in, there are only two types of particles: "fermions," which repel each other, and "bosons," which like to stick together. A commonly known fermion is the electron, which transports electricity; and a commonly known boson is the photon, which carries light. In the two-dimensional world, however, there is another type of particle, the anyon, which doesn't behave like either a fermion or a boson.

In a two-dimensional world, two identical anyons change their wavefunction when they swap places in ways that can't happen in three-dimensional physics:
https://en.wikipedia.org/wiki/Anyon

Quote
After decades of exploration in nature’s smallest domains, physicists have finally found evidence that anyons exist. First predicted by theorists in the early 1980s, these particle-like objects only arise in realms confined to two dimensions, and then only under certain circumstances — like at temperatures near absolute zero and in the presence of a strong magnetic field.
https://www.discovermagazine.com/the-sciences/physicists-prove-anyons-exist-a-third-type-of-particle-in-the-universe

I won't even pretend that this stuff isn't waaay over my head - the concept of a 2D particle in 3D space is mindbending enough by itself - but regardless, the practical application is that these particles may be useful in quantum computers, allowing these computers to encode data more efficiently.

Also, I'm amazed at the sheer variety of subatomic stuff going on invisibly around us.  The ancient greeks hypothesized indivisible atoms, but we've dug so much further down than that, into electrons and protons and neutrons, and then further down into ferminions (quarks, leptons, antiquarks, antileptons), gauge bosons (aka force carriers - photons, W and Z bosons, gluons) and Higgs bosons.  Add to that quasiparticles - emergent properties of particles, kind of like flocks of birds.  (I hope I got that basically correct, even this short summary was taxing!)  And boy are there a lot of them.  We dig and dig and we just go down and down, seemingly forever...

My question is, how far can we dig until we hit bedrock?  Surely we can't keep discovering new subatomic particles forever - like some infinite russian doll.  Surely, there have to be the fundamental building blocks of reality somewhere down there.  And just how much of this stuff actually exists in reality and how much are convenient mathematical abstractions?

Online aitm

Re: Anyons proven to exist
« Reply #1 on: December 14, 2020, 05:00:20 PM »
Yes, yes yes, no, yes, no,yes,yes,no,no, yes yes yes, no yes, yes
A humans desire to live is exceeded only by their willingness to die for another. Even god cannot equal this magnificent sacrifice. No god has the right to judge them.-first tenant of the Panotheust

Offline Baruch

Re: Anyons proven to exist
« Reply #2 on: December 14, 2020, 05:27:34 PM »
Maybe.  There have been fevered announcements of scientific utopia in every issue of Popular Science since I first got my haircut in a barber shop ;-)  And no, whatever the next scientific discovery might be, it doesn't mean that you won't have to work anymore and that the government will wither away ;-)  It took 80 years for General Relativity to have any practical impact on ordinary people (GPS satellite).  Special Relativity was useful in understanding muon decay for example, before that (time dilation of half life) ... but most people won't know or care.

Solid state physics has been of immense benefit, because of transistors.  But that doesn't take any Relativity theory to explain it.  Also liquid crystal technology has been of benefit for displays.  So far, plasma physics hasn't helped overcome the engineering difficulties of fusion power (except for frauds like cold fusion).  The physics of 1950 has been very fruitful for electronics, but Moore's Law was exhausted 10 years ago.  Cramming more transistors per square millimeter have reached a declining benefit per added transistor.  The major problem (see US Treasury hack) has been in software and administration.
« Last Edit: December 14, 2020, 05:30:17 PM by Baruch »
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Re: Anyons proven to exist
« Reply #3 on: December 14, 2020, 10:04:36 PM »
2D objects in 3D space makes some sense - at least more sense than 3D objects in 2D space.

I read in Scientific American several years back that some scientists think that the spacial dimensions didn't all unwind at the same time, that during the early universe it was 1D, then 2D, then 3D.  Those same scientists think that in the great voids between galactic clusters the 4th spacial dimension is starting to unwind, creating 4D space.
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Re: Anyons proven to exist
« Reply #4 on: December 14, 2020, 10:22:37 PM »
Our galaxy is near the edge of the Local Void, which is why we've had so few major galactic collisions in billions of years. It may have been a minor collision with one of the Megallanic clouds that began the collapse of the pre-solar nebula.

 I 've read that in the centers of the voids the flow of time is faster, due to weak gravity, whereas the galaxies in clusters have a slower-flowing time. The universe is older deep in the voids than in the clusters. The time flow difference may not be large, but in the billions of years of the lifetime of the universe it has added up so that the central regions of voids are much older than we see it.
God Not Found
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Offline drunkenshoe

Re: Anyons proven to exist
« Reply #5 on: December 15, 2020, 08:38:43 AM »
I can't comprehend 2D. LOL
"I believe you find life such a problem because you think there are good people and bad people. You're wrong, of course. There are, always and only, the bad people, but some of them are on opposite sides." Havelock Vetinari

Online Hydra009

Re: Anyons proven to exist
« Reply #6 on: December 15, 2020, 09:37:12 AM »
I can't comprehend 2D. LOL
Same.  I can conceptualize something very, very thin, but literally nothing is bizarre.  Imagine an object with no height.  It just doesn't compute.

Offline Baruch

Re: Anyons proven to exist
« Reply #7 on: December 15, 2020, 11:04:31 AM »
I can't comprehend 2D. LOL

Go study your kitchen table ;-)
« Last Edit: December 15, 2020, 11:06:48 AM by Baruch »
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Offline Baruch

Re: Anyons proven to exist
« Reply #8 on: December 15, 2020, 11:06:30 AM »
Same.  I can conceptualize something very, very thin, but literally nothing is bizarre.  Imagine an object with no height.  It just doesn't compute.

Math is idealistic.  That is why Pythagoras formed a communist society.  And why Samos drove him out and Croton burned him out.

Parmenides of Elea calls BS on infinitesimals and infinities.  Stick to the natural numbers (if you admit you are a zero not a hero include null).
Ha’át’íísh baa naniná?
Azee’ ła’ish nanídį́į́h?
Táadoo ánít’iní.
What are you doing?
Are you taking any medications?
Don't do that.

Re: Anyons proven to exist
« Reply #9 on: December 15, 2020, 03:50:44 PM »
I wonder if a molecular monolayer, like graphene, might appear and act as a two-dimensional surface for a sufficiently large organism? The Earth's surface appears to us as 2d, though we can still perceive the 3rd dimension.
God Not Found
"There is a sucker born-again every minute." - C. Spellman

Offline Baruch

Re: Anyons proven to exist
« Reply #10 on: December 15, 2020, 07:04:49 PM »
Most of the weird solid state physics today is done along mono-atomic threads, or upon a mono-atomic layer.

Ha’át’íísh baa naniná?
Azee’ ła’ish nanídį́į́h?
Táadoo ánít’iní.
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Don't do that.

Offline trdsf

Re: Anyons proven to exist
« Reply #11 on: December 17, 2020, 05:59:56 PM »
2D objects in 3D space makes some sense - at least more sense than 3D objects in 2D space.

I read in Scientific American several years back that some scientists think that the spacial dimensions didn't all unwind at the same time, that during the early universe it was 1D, then 2D, then 3D.  Those same scientists think that in the great voids between galactic clusters the 4th spacial dimension is starting to unwind, creating 4D space.
I can't help but wonder that if true, dimensional unfolding has anything to do with the accelerating expansion of the universe.

2D particles already part of modern theory -- subatomic strings are thought to be essentially 2D objects existing in 11D space, or something computationally painful like that.
"My faith in the Constitution is whole, it is complete, it is total, and I am not going to sit here and be an idle spectator to the diminution, the subversion, the destruction of the Constitution." -- Barbara Jordan

Offline trdsf

Re: Anyons proven to exist
« Reply #12 on: December 17, 2020, 07:00:06 PM »
Same.  I can conceptualize something very, very thin, but literally nothing is bizarre.  Imagine an object with no height.  It just doesn't compute.



(there is a Flatland movie on YouTube, but they almost completely lose the maths)
"My faith in the Constitution is whole, it is complete, it is total, and I am not going to sit here and be an idle spectator to the diminution, the subversion, the destruction of the Constitution." -- Barbara Jordan

Offline Baruch

Re: Anyons proven to exist
« Reply #13 on: December 17, 2020, 08:03:36 PM »
Carl Sagan can explain things, because he practiced billions and billions of times ...
Ha’át’íísh baa naniná?
Azee’ ła’ish nanídį́į́h?
Táadoo ánít’iní.
What are you doing?
Are you taking any medications?
Don't do that.

Re: Anyons proven to exist
« Reply #14 on: December 17, 2020, 09:48:13 PM »
Sagan never uttered the phrase "billions and billions." That's an urban myth.

:-)
God Not Found
"There is a sucker born-again every minute." - C. Spellman