The most interesting phenomenon revealed so far is that the room-temperature superconductor people and the generative-LLMs-are-God people draw on the same limited global pool of credulity, such that HN cannot be flooded with both ChatGPT worship and superconductor speculation at the same time.
Electronic Structure of LK-99
21–30 of 448 posts
Re: Electronic Structure of LK-99
#22The most interesting phenomenon revealed so far is that the room-temperature superconductor people and the generative-LLMs-are-God people draw on the same limited global pool of credulity, such that HN cannot be flooded with both ChatGPT worship and superconductor speculation at the same time.
the singularity isn't going to implement itself, you know.
Re: Electronic Structure of LK-99
#23I got my PhD studying band structure of high-tc superconductors (experimentalist, ARPES). These Cu d-d interactions right at the fermi energy give me huge hope. Feels very familiar to other superconductors (re: all the cuprates). (Note: I specifically worked in a lab that was measuring a lot of the d-wave character / gap-energies of various superconductors) All in all, I'm now much more bullish on LK-99 being real su…
What would you need to see to say "I am 100% convinced this is / isn't real"?
And how long would you expect it will be before that occurs?
Re: Electronic Structure of LK-99
#24The most interesting phenomenon revealed so far is that the room-temperature superconductor people and the generative-LLMs-are-God people draw on the same limited global pool of credulity, such that HN cannot be flooded with both ChatGPT worship and superconductor speculation at the same time.
Re: Electronic Structure of LK-99
#25So theorically they agree with LK-99 reaching superconductivity?
I am a PhD student in Physics, but I am no expert in condensed matter physics (I do research in computational NMR). Based on my experience with theorists and simulation researcher, I am a bit concerned with anchoring bias and the speed at which simulation papers are being published here. Then again, I don't know exactly what kind of research steps they follow to do their research.
The simulation paper folks are talking about used what appeared to be an existing DFT simulation package. Now, DFT is an approximate theory used to render computation tractable, but to my understanding it is a popular and mature method. I was actually kind of impressed that they were able to reproduce results from the LK paper in simulation so quickly. While it’s possible the speed led to a bug or error in the analysis, simulations often don’t just magically work and can take a decent amount of parameter tuning — especially if the system being simulated has something tricky or exotic going on. The fact that they were able to get what appears to be an accurate simulation working quickly that also justifies the low yield rates has made me more cautiously optimistic than anything
Re: Electronic Structure of LK-99
#26This ongoing research saga pretty much the most excited I’ve been about anything since before Covid. It feels like the science equivalent of watching your favorite sports team on an epic rise towards winning a world championship. Even if this turns out to flop, I hope history remembers the original authors favorably. They really did find something that by all accounts could plausibly be a room temp superconductor. An…
Re: Electronic Structure of LK-99
#27I got my PhD studying band structure of high-tc superconductors (experimentalist, ARPES). These Cu d-d interactions right at the fermi energy give me huge hope. Feels very familiar to other superconductors (re: all the cuprates). (Note: I specifically worked in a lab that was measuring a lot of the d-wave character / gap-energies of various superconductors) All in all, I'm now much more bullish on LK-99 being real su…
Thanks for your input. What would you need to see to say "I am 100% convinced this is / isn't real"? And how long would you expect it will be before that occurs?
(1) When there's peer-reviewed replication from a group of reputable labs.
(2) When I see the classic superconductor-on-magnetic-track demo, but without liquid nitrogen.
Re: Electronic Structure of LK-99
#28So theorically they agree with LK-99 reaching superconductivity?
yes, but if you reported 100 different substances reaching superconductivity, 100 theorists will publish papers demonstrating their model supports the observation... regardless of whether those substances actually reach superconductivity. (put another way: it's post-hoc)
Re: Electronic Structure of LK-99
#29I got my PhD studying band structure of high-tc superconductors (experimentalist, ARPES). These Cu d-d interactions right at the fermi energy give me huge hope. Feels very familiar to other superconductors (re: all the cuprates). (Note: I specifically worked in a lab that was measuring a lot of the d-wave character / gap-energies of various superconductors) All in all, I'm now much more bullish on LK-99 being real su…
So happy to hear this. I've been hoping for some sort of breakthrough ever since I first encountered footage of magnets falling through Cu tubes at an extremely leisurely pace.
The moving magnet induces a current in the tube which in turn creates the magnetic field that interacts with the magnet.
Re: Electronic Structure of LK-99
#30Assuming this is all true, why is it just now coming to light? Did they just not know what they had? (I have not been following this closely, maybe this has already been explained)