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Author Topic:   Article About New Developments in Quantum Mechanics
RAZD
Member (Idle past 1404 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 9 of 18 (870575)
01-22-2020 12:20 PM


quantum mechanics and superconductivity
Strange quantum effect found in an exotic superconductor - Big Think
quote:
An international team of researchers observed an unexpected quantum effect in an exotic superconductor. Their discovery can lead to the next generation of energy-saving technologies.
Traditional superconductors, used for conducting electricity without resistance, work at low temperatures. However, some iron-based superconductors discovered about a decade ago, work at high temperatures. How they do it has been unclear, especially as the magnetism of iron conflicts with the appearance of superconductivity, explains the press release from Princeton, whose scientists led the research.
What was surprising, the researchers found that the cobalt atoms were able to disrupt electron pairing while replacing iron atoms in the metal. This behavior, which resulted in a quantum phase transition, changing the state from superconducting to non-superconducting, also violated the well-established Anderson's theorem. Proposed in 1959 by the Nobel Prize-winning physicist Philip Anderson, it was the accepted explanation for what would happen if you added impurities to a superconductor. The new research clearly shows an exception to Anderson's theorem.
Another unusual find revealed that the cobalt impurities also transformed the nature and the shape of the so-called "energy gap" - a feature emblematic of superconductivity. The shape of the gap is indicative of the "order parameter" linked to the nature of the superconductivity. The effect on this property is mysterious and points to a sign change in the order parameter's phase.
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we are limited in our ability to understand
by our ability to understand
RebelAmericanZenDeist
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Replies to this message:
 Message 10 by jar, posted 01-22-2020 12:34 PM RAZD has replied

  
RAZD
Member (Idle past 1404 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 11 of 18 (870580)
01-22-2020 12:56 PM
Reply to: Message 10 by jar
01-22-2020 12:34 PM


Re: quantum mechanics and superconductivity
And I couldn't find a link to the original paper

This message is a reply to:
 Message 10 by jar, posted 01-22-2020 12:34 PM jar has not replied

  
RAZD
Member (Idle past 1404 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


(1)
Message 14 of 18 (870652)
01-23-2020 12:59 PM
Reply to: Message 13 by PaulK
01-23-2020 12:27 PM


Search Engine Problems
... There are arguments over just how good Google’s results really are.
Particularly when the results are biased by filtering preferences (for google ads for example) AND when they run on with a bunch of garbage listings with little relationship to the query string.
The big problem imho is absence of any filtering based on accurate, verifiable, valid content. Any idiot can (and does) post garbage and it gets the same treatment as good information. The more ignorant people get access to the internet, the more ignorant garbage gets posted, and the more anyone's search gets cluttered with it.
Enjoy

we are limited in our ability to understand
by our ability to understand
RebelAmericanZenDeist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
 Message 13 by PaulK, posted 01-23-2020 12:27 PM PaulK has replied

Replies to this message:
 Message 15 by PaulK, posted 01-23-2020 1:07 PM RAZD has replied

  
RAZD
Member (Idle past 1404 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 16 of 18 (870690)
01-23-2020 6:20 PM
Reply to: Message 15 by PaulK
01-23-2020 1:07 PM


Re: Search Engine Problems are not the topic
Mine too.

This message is a reply to:
 Message 15 by PaulK, posted 01-23-2020 1:07 PM PaulK has not replied

  
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