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Best evidence yet for existence of anyons
phys.org ^ | July 10, 2020 | by Bob Yirka

Posted on 07/10/2020 7:45:20 AM PDT by Red Badger

A small team of researchers at Purdue University has found the strongest evidence yet of the existence of abelian anyons. They have written a paper describing experiments they conducted designed to reveal the existence of the quasiparticles and have uploaded it to the arXiv preprint server while they await peer review.

Anyons are neither bosons nor fermions—in fact, they are not elementary particles at all. Instead, they are classified as quasiparticles that exist in two dimensions. They can be observed, theoretically speaking, when they appear as disturbances in two-dimensional sheets of materials. Theoretical physicists have suggested their existence since the late 1970s and they were officially named by Frank Wilczek in the early 1980s. Theory has also suggested that they braid, but in ways differently than bosons or fermions. If a fermion or a boson were dragged around another of its kind, theory suggests, the action would not produce a record of what had occurred. But because anyons alter wave functions, they would create such a record. The process involves inserting a phase into the wave function of the particles. In this new effort, the researchers created a device that allowed them to see evidence of such a record.

The device the team created involved moving anyons along a 2-D path; at a given point, the pathway split. One of the paths looped around another anyon which was situated in the center of the device. The other took a direct route before the two paths were reunited. The team then measured the electric current in the device looking for jumps. According to theory, such jumps would be present as anyons were added and then removed from the device, altering the phase. To be able to record such jumps, the device was built in layers of materials that filtered out random noise. The resulting measurements make the the strongest case to date for the existence of quasiparticles, and in so doing, have strongly bolstered theories that describe both their existence and their behavior. They have also likely brightened the hopes of some researchers who have been looking into the possibility of using anyons to create more robust quantum computers.

Quasiparticle braiding experiment. a) Schematic representation of quasiparticle exchange; quasiparticles are represented by red vortices, and trajectories are shown in dashed lines. b) False-color SEM image of interferometer. Credit: arXiv:2006.14115 [cond-mat.mes-hall]

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Anyon evidence observed using tiny anyon collider


TOPICS: Astronomy; Education; History; Science
KEYWORDS: abeliananyons; anyons; bosons; fermions; parmasons; quasiparticles; stringtheory
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1 posted on 07/10/2020 7:45:20 AM PDT by Red Badger
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To: Red Badger

I always have some anyons in my vegetable drawer.


2 posted on 07/10/2020 7:48:29 AM PDT by HartleyMBaldwin
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To: HartleyMBaldwin

There is no equal representation under the law. The country needs an overhaul.


3 posted on 07/10/2020 7:50:04 AM PDT by Phillyred (Kieran Hussie)
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To: Phillyred

Oops, wrong thread. Sorry.


4 posted on 07/10/2020 7:50:55 AM PDT by Phillyred (Kieran Hussie)
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To: Phillyred

Huh?


5 posted on 07/10/2020 7:53:05 AM PDT by HartleyMBaldwin
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To: Red Badger

They look like Q anons.

Related?


6 posted on 07/10/2020 7:53:33 AM PDT by Vendome (I've Gotta Be Me https://youtu.be/wH-pk2vZG2M)
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To: Phillyred

Posted before I saw your other comment. Apologies.


7 posted on 07/10/2020 7:54:05 AM PDT by HartleyMBaldwin
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To: SunkenCiv

gnip


8 posted on 07/10/2020 7:54:52 AM PDT by BenLurkin (The above is not a statement of fact. It is either opinion or satire. Or both.)
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To: Red Badger

Anyons??????????????? Is this some satire that describes trans people?????


9 posted on 07/10/2020 7:55:18 AM PDT by Allen In Texas Hill Country
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To: Red Badger; TXnMA

Cool post.
I’m always intrigued by physicists trying to prove “foundational-or-samller” particles.
It gives Einstein a chubby.

Then, I always ask, “So, what can we /DO/ with the particle now that we know Einstein was right*?”
I mean, can we grind up a couple gorillion Moles of them and use them as “anyon butter” on our toast?
I get no answers other than “Excelsior!”
- h/t BearManPig

* I know Einstein didn’t theorize anyons.
I use his name as a device.


10 posted on 07/10/2020 7:56:47 AM PDT by Cletus.D.Yokel (When we look to government to solve our problems, our "rights" become reduced to "privileges".)
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To: Red Badger

I kind of understand this.

Is there a practical application for this stuff? Or does it lead to, “What are these things made of?”


11 posted on 07/10/2020 7:59:27 AM PDT by Vermont Lt
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To: Red Badger

Purdue.


12 posted on 07/10/2020 8:00:44 AM PDT by Principled (No one will conquer America, from within or without, until its citizenry are disarmed.)
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To: Phillyred

Your comment makes as much sense as any on this thread! Maybe even more.


13 posted on 07/10/2020 8:05:14 AM PDT by ProtectOurFreedom
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To: Vendome

Where’s the proof for the existence of crayons?


14 posted on 07/10/2020 8:07:35 AM PDT by steve8714
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To: Cletus.D.Yokel

Trying to find s “God Particle”. All so they don’t have to believe in God.


15 posted on 07/10/2020 8:09:15 AM PDT by steve8714
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To: HartleyMBaldwin

The quasiparticles have been shown to coalesce into circular configurations, forming anyon rings.


16 posted on 07/10/2020 8:41:30 AM PDT by I-ambush (One foot in the grave, one foot on the pedal I was born to rebel.)
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To: I-ambush

Mmmmm...anyon rings...


17 posted on 07/10/2020 8:43:17 AM PDT by HartleyMBaldwin
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To: Phillyred

I will not rest until so-called “fundamental” particles relinquish their privilege, and quasiparticles are accorded full particle status.


18 posted on 07/10/2020 8:44:32 AM PDT by I-ambush (One foot in the grave, one foot on the pedal I was born to rebel.)
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To: Vendome

Yes, they both pop in and out of reality...


19 posted on 07/10/2020 8:57:53 AM PDT by desertfreedom765
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To: Red Badger

Isaac Asimov wrote a entertaining, easy-to-read book on the neutrino. That’s as far as I got, before tuning out on particle physics.

As a general matter, I think each of us should try to distinguish between science, science speculation, and science fiction. I saw a celebrity physicist on TV talk of an infinite number of universes as though that was a fact. I would put that more in the category of science fiction or science speculation.


20 posted on 07/10/2020 9:02:15 AM PDT by ChessExpert (NAFTA - Not A Free Trade Agreement)
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