cyrano

Quantum magnets
« on: July 26, 2020, 06:40:05 PM »
A US-Chinese research team is onto something new:

https://phys.org/news/2020-07-scientists-topological-magnet-exotic-quantum.html

You'll have to read the article, I'm afraid as I don't grok it yet, I'm afraid.
Why is it people love to believe and hate to know?


ruffrecords

Re: Quantum magnets
« Reply #1 on: July 27, 2020, 03:38:45 AM »
Excellent. One step closer to the quantum star drive.

Cheers

Ian
www.customtubeconsoles.com
https://mark3vtm.blogspot.co.uk/
www.eztubemixer.blogspot.co.uk


'The only people not making mistakes are the people doing nothing'

bluebird

Re: Quantum magnets
« Reply #2 on: July 27, 2020, 03:08:06 PM »
The researchers further used other tools to check and reconfirm their findings of the Chern gapped Dirac fermions, including electrical transport measurements of anomalous Hall scaling, angle-resolved photoemission spectroscopy of the Dirac dispersion in momentum space, and first-principles calculations of the topological order in the material family. The data provided a complete spectrum of inter-linked evidence all pointing to the realization of a quantum-limit Chern phase in this kagome magnet.

That's exactly what I was thinking... 8)

cyrano

Re: Quantum magnets
« Reply #3 on: July 27, 2020, 04:10:21 PM »
Hey, I told you I was trying to grok it.  ;D
Why is it people love to believe and hate to know?

gyraf

Re: Quantum magnets
« Reply #4 on: July 28, 2020, 03:21:39 AM »
I can't extract even the smallest piece of information from this - it could as well be written by a  recursive transition text generator or be a hoax like Sokal's

Smells at least a little of smoke screening, i.e. no results but wanting more funding


http://www.elsewhere.org/pomo/  < reload, and get a new one each time

/Jakob E.
..note to self: don't let Harman run your company..

cyrano

Re: Quantum magnets
« Reply #5 on: July 28, 2020, 06:06:52 AM »
Thanks for confirming my suspicion. I figured it was my paranoid mind again, but you seem to draw the same conclusion.

I did a fair bit of googling and couldn't find much on the type of magnets they're using. Doesn't mean much, as magnetism probably still is the least understood physics department.
Why is it people love to believe and hate to know?

Re: Quantum magnets
« Reply #6 on: July 28, 2020, 08:21:17 PM »
I remember once a buddy trying to convince me that perpetual motion with magnets was possible, in other words free energy  :)
I tried to explain even the energy required to gather rare earth elements to make the magnets in the first place would dwarf any return .
Energy is neither created nor destroyed ,but merely transformed , yes magnets and coils are some of the finest ,most efficient 'engines' to transform one kind of energy to another , it still doesnt equate to a free lunch though.
Nuclear power might appear to offer boundless energy for next to nothing , but can we be sure humanzee will be around for the next few hundred thousand years to contain the hazardous waste that the industry creates ?
In the hunger for power we could very easily end up with a planet inhabbited by D.radiodurans and cockroaches in the end .

Re: Quantum magnets New
« Reply #7 on: July 28, 2020, 10:56:43 PM »
Thanks for confirming my suspicion. I figured it was my paranoid mind again, but you seem to draw the same conclusion.

I did a fair bit of googling and couldn't find much on the type of magnets they're using. Doesn't mean much, as magnetism probably still is the least understood physics department.

I don't think magnetism is the least understood magnitude in physics, in fact there is a good electrodynamics treatize and I can say that as a species we have somehow acquired a good grasp of electromagnetism, I have read several books on electromagnetic theory and I can vouch for the completness of the theory, as a proof, you can look at the EM simulation software out there like CST, HFSS, COMSOL, FEKO, in which electric and magnetic fields are simulated with great precision, now gravity is a whole different thing, if you find what causes gravity you can go and collect your Nobel prize.
« Last Edit: July 28, 2020, 11:07:24 PM by Dualflip »


 

Related Topics

  Subject / Started by Replies Last post
3 Replies
2051 Views
Last post July 08, 2004, 03:23:27 PM
by Kat
25 Replies
12436 Views
Last post November 20, 2004, 04:19:15 AM
by zebra50
17 Replies
3999 Views
Last post January 18, 2005, 06:27:11 PM
by clintrubber
12 Replies
2667 Views
Last post February 13, 2009, 12:10:58 PM
by clintrubber