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Electronic Structure of LK-99

arxiv.org

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Re: Electronic Structure of LK-99

#261

Post by [deleted] »

jpmattia wrote: post #69
bluecoconut wrote: post #12

I 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…

> These Cu d-d interactions right at the fermi energy give me huge hope. Feels very familiar to other superconductors (re: all the cuprates). As someone who is versed in semiconductor band structures but not superconductor band structures: What is it about Cu d-d interactions that causes the superconductivity? Degenerate energies in semiconductors don't give rise to electron pairing, so I'm a bit out to sea with the…

[deleted]

Re: Electronic Structure of LK-99

#262

Post by emptyfile »

swalsh wrote: post #95
jeffbee wrote: post #16

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.

It's so hard not to be crazy excited about the future. The past few months are proving to be an absolute breakout for the literal human race. So far we've seen: 1. in Dec 2022 We saw a fusion breakthrough seeing a net gain in energy 2. In March GPT-4 was released, which seems to be a seminal breakthrough in AI, and maybe of our first glimpse in what could become an AGI. 3. In May we find out apparently our government…

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Re: Electronic Structure of LK-99

#263

Post by OJFord »

weinzierl wrote: post #238
bluecoconut wrote: post #12

I 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…

This is probably a very stupid question, but why is simply measuring resistance not enough to conclusively prove that it is a superconductor. I mean, isn't zero resistance the defining property?

I think if it was actually zero it would be? The issue I think is impurity/defects in the manufactured samples, so there's non-superconducting bits in addition to the allegedly superconducting bits.

Re: Electronic Structure of LK-99

#264

Post by emptyfile »

xtracto wrote: post #127
JamisonM wrote: post #113

Earlier quoted context omitted.

> 3. In May we find out apparently our government has recovered alien technologies This is a silly thing to include on the list since it doesn't seem to be true?

What's up with that uh? I read about the swore statements during the depositions, and all the mainstream media news, but for some reason HN had radio silence. Is there something I missed that shows it's all shenanigans?

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Re: Electronic Structure of LK-99

#265

Post by yetihehe »

fragmede wrote: post #251
yetihehe wrote: post #250

Earlier quoted context omitted.

How would you find such researchers if they didn't have plausible real-world results yet? I have a theory for new high performance heat engine which I developed over 15 years already, but I don't think anyone would give me ANY money for making a prototype (which may not work in reality), so I have to somehow do it in the limited time after working two jobs (I had to earn enough to have a home with a proper garage). D…

Get involved with your local community of makers, get them intrigued by your idea and its potential, connect with people that will help you build it. Patent it, and then raise funds via the Internet to try and build it. Seek out local VCs. I know that's a lot to ask, on top of two jobs, but I didn't organize our economy.

Thanks for reply, I appreciate it a lot.

> Get involved with your local community of makers, get them intrigued by your idea and its potential, connect with people that will help you build it.

This will prevent me from patenting it. I can also make first prototype myself, I've started last year, will try to finish this year. Funding would just let me drop one job and make it faster.

> Patent it, and then raise funds via the Internet to try and build it. Seek out local VCs. I know that's a lot to ask, on top of two jobs, but I didn't organize our economy.

I don't have enough money for patenting something that might not work. That's why I need to make a prototype. That prototype will be MUCH cheaper than a proper patent but takes some time which I also don't have too much (but working on it slowly). When I'm sure it works, I already have enough connections to make it actually happen.

At this moment, funding my prototype would just benefit humanity with earlier knowledge of whether it works, so of course no one sane will fund it, that's the sad reality with human priorities.

> I know that's a lot to ask, on top of two jobs, but I didn't organize our economy.

Yeah, I've only asked for tips just in case you have some, I don't blame you or anything. Thank you!

This thread also describes WHY those LK-99 researchers sat on their invention for so long, they just couldn't find enough people interested in their material.

Of course I could just publish my idea, but it's possible that no one would be interested in this and I would like to have some money from this to pursue some other ideas without begging people for support.

Re: Electronic Structure of LK-99

#266

Post by robocat »

soulofmischief wrote: post #203
wredue wrote: post #174

Earlier quoted context omitted.

We’re nowhere near AGI dude, even with several breakthroughs. AI today is a glorified search algorithm.

That doesn't mesh with the daily insights I gain from asking GPT-4 novel questions and receiving answers that integrate a much wider knowledge corpus that I have in my head. You can argue all language is a form of search, but that is missing completely what transformer models are bringing to the table, and not just within language.

Injecting random noise into your brain and finding intelligent connections says you are smart.

Your comment says nothing about whether we are “near AGI”, only that we find images within Rorschach blobs (as a metaphor for GPT4 generated text).

Re: Electronic Structure of LK-99

#267

Post by MrBuddyCasino »

bluecoconut wrote: post #12

I 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…

This is probably the most stupid question to ask, but while were are still trying to confirm superconductivity instead of understanding its precise mechanism of operation, why the focus on levitation on band structure to confirm the news instead of just "yep this chunk has actually zero Ohms"?

Re: Electronic Structure of LK-99

#268

Post by yreg »

golol wrote: post #211
xtracto wrote: post #127

Earlier quoted context omitted.

What's up with that uh? I read about the swore statements during the depositions, and all the mainstream media news, but for some reason HN had radio silence. Is there something I missed that shows it's all shenanigans?

100% chance the guy is just lieing for attention or because he is delusional. He said that UFOs could be coming from extra dimensions. He might as well say that the UFOs are coming from atlantis or the second circle of hell. It's just horseshit, plain as.

> UFOs could be coming from extra dimensions

I somehow find this perhaps more believable than the alternatives of (1) civs out there having FTL and not colonizing the Galaxy to the degree that we would detect it or (2) them coming here at sublight speeds to do the described UFO things.

Re: Electronic Structure of LK-99

#269

Post by pjc50 »

MrBuddyCasino wrote: post #267
bluecoconut wrote: post #12

I 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…

This is probably the most stupid question to ask, but while were are still trying to confirm superconductivity instead of understanding its precise mechanism of operation, why the focus on levitation on band structure to confirm the news instead of just "yep this chunk has actually zero Ohms"?

"zero ohms" is very tricky to measure because of contact resistance: your probes aren't superconducting, and the thin contact surface between your probes and the metal itself isn't superconducting either.

Whereas the Meissner effect is unique to superconductors. It just has to be distinguished from diamagnetism, and there are materials which are strongly diamagnetic but not superconductors.

Re: Electronic Structure of LK-99

#270

Post by mpixel »

jacquesm wrote: post #209
jeffbee wrote: post #16

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.

Jeffbee in the 1947 edition: The most interesting phenomenon revealed so far is that the solid state electronics people and the rocket fanatics people draw on the same limited global pool of credulity, such that TinkererNews cannot be flooded with both transistor worship and moon travel speculation at the same time. Seriously: if it doesn't interest you, you could simply refrain from commenting and even reading. This…

I think it's equally wrong to compare this whole thing to solar panels and whatnot.

That said, in general, 9 out of 10 things that are very promising will ultimately fail, and there's nothing wrong with discussing or following all 10, the 1 will work, and it'll be great.

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