New result in high temp superconductivity

  • Context: Undergrad 
  • Thread starter Thread starter PAllen
  • Start date Start date
  • Tags Tags
    Superconductivity
Click For Summary
SUMMARY

The recent paper titled "New result in high temp superconductivity" suggests that no new theoretical framework beyond the Bardeen-Cooper-Scrieffer (BCS) model is necessary to explain high-temperature superconductors. This finding challenges the long-held assumption that a new theory was required due to missing features in the BCS model. The paper's publication in a reputable peer-reviewed journal adds to its credibility, and if validated, it could resolve a decades-long mystery in condensed matter physics. Experts in the field are encouraged to evaluate the paper's claims and implications.

PREREQUISITES
  • Understanding of Bardeen-Cooper-Scrieffer (BCS) theory
  • Familiarity with high-temperature superconductors (high-Tc)
  • Knowledge of tunneling spectroscopy techniques
  • Basic principles of condensed matter physics
NEXT STEPS
  • Research the implications of BCS theory in high-temperature superconductivity
  • Explore Anderson's Resonating Valence Bond (RVB) theory
  • Investigate tunneling spectroscopy applications in superconductivity studies
  • Review peer commentary on the paper from reputable physics journals
USEFUL FOR

Physicists, condensed matter researchers, and anyone involved in high-temperature superconductivity studies will benefit from this discussion, particularly those interested in theoretical frameworks and experimental validations in the field.

PAllen
Science Advisor
2025 Award
Messages
9,423
Reaction score
2,616
I don’t seem to see discussion of this result on PF, so I invite such:

https://arxiv.org/abs/1704.07685

This suggests the possibility no new theory beyond BCS is necessary.

I’m interested especially in comments by members who work in this or related fields.
 
  • Like
Likes   Reactions: Amrator, blaisem, Demystifier and 2 others
Physics news on Phys.org
PAllen said:
BCS
Hi Paul:

What does the acronym BCS stand for?

Regards,
Buzz
 
Buzz Bloom said:
Hi Paul:

What does the acronym BCS stand for?

Regards,
Buzz
Bardeen-Cooper-Scrieffer, the three who explained traditional superconductivity winning a Nobel prize for it (note that Feynman, who helped explain superfluidity, tried mightily to solve superconductivity, but failed). It is a standard acronym. Since high temp superconductors were first investigated, it has been generally assumed that they need a new theory because key features of the BCS model are missing. This paper reports a measurement that the most characteristic feature of this model is present but disguised, and that there is reason to believe that no new theory is needed. In my view, this is a remarkable result and claim. But this is way outside my expertise. I was hoping people here who know much more about this could comment on the paper’s plausibility and what the judgment of other experts is. If validated, this paper would resolve a decades long mystery in condensed matter physics. I note this paper is published in one of the most reputable peer reviewed journals.
 
Last edited:
  • Like
Likes   Reactions: Buzz Bloom and Demystifier
I've been out of high-Tc research for a while, so I'm not up to speed on many of these. I did tunneling spectroscopy on these cuprates, so the technique is familiar to me, but I'm not well-verse in the theoretical analysis.

I think the issue here is whether something like Anderson's RVB description or the BCS-like description is still valid for the cuprates is still not settled even with this result. It seldom is with just one set of experiment. When I was analyzing my tunneling and ARPES data, we definitely were assuming the presence of quasiparticles and coupling to some bosonic mode that is the source of the Cooper pairing. In many camps, this is often considered to be a BCS-like analysis. So to read a paper like this isn't a surprise to me.

Zz.
 
  • Like
Likes   Reactions: jim mcnamara, atyy and PAllen

Similar threads

  • · Replies 1 ·
Replies
1
Views
732
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 16 ·
Replies
16
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K