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Joined 2 years ago
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Cake day: July 18th, 2023

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  • What I see from this is “don’t try to ‘help’ the poor by creating programs that give them jobs [public workshops]. Help them unconditionally”

    Basically, fdr’s new deal policies were still a capitalist approach that could have been replaced more elegantly with free food and housing.


  • The original paper is called “Excitons in the fractional quantum Hall effect”

    If you know what that means, it’s more clear and less misleading than the phys.org headline.

    If you don’t know what that means, it’s a novel combination of two known properties of materials—excitons and the fqhe.

    The buzz appears to be that it leads to some weird excitations/quasiparticles that have non-bosonic statistics. Namely, anyons and fermionic excitations can appear (the former is a known phenomenon, but the latter has only been theorized—a fact that honestly surprised me). This loosely relates to some types of quantum computers, but in all honesty, I would expect this paper to only be interesting to those in condensed matter physics, and I’m not entirely sure why it was picked up and turned into a thing.


  • He didn’t pretend Reagan was better?

    I didn’t vote to reelect Jimmy Carter. Union friends and Democrats alike pleaded with me. “It’s the most important election of your life! You have to vote for Carter!” Not me. I was already aware by then of the impacts that failed politicians and their politics can have on your life. My one little vote didn’t matter anyway, since after almost four years of the Carter presidency just about everyone I knew — and worked with — was voting for Ronald Reagan, an even worse alternative, anyway. If they were voting at all.

    Sounds more like he didn’t vote. Like much of the left (in both of these elections), he gave up entirely on the government and saw it as an other/enemy rather than something that could be reformed through a vote.


  • It’s not really communication. They ‘know’ because they become part of the same wave function. The wave function of the system is

    |psi1 psi2> ± |psi2 psi1>

    Note that if the ± is a plus, then exchanging psi1 and psi2 yields the exact same equation. If it’s a minus, you get a negative sign out front. Electron systems have a negative sign because of the spin statistics theorem (I don’t understand that part, so you can look it up if you want—it involves field theory iirc) Now, if electrons are exactly the same (indistinguishable), then exchanging them will yield the exact same wave function, leading to

    |psi1 psi2> - |psi2 psi1> = |psi2 psi1> - |psi1 psi2>

    The only solution here is |psi1 psi2> - |psi2 psi1> = 0

    But recall that |psi1 psi2> - |psi2 psi1> describes the system as a whole. So this system is prohibited by quantum mechanics, and there’s no way for two electrons to have indistinguishable states (be in the same place at the same time).


  • FrenziedFelidFanatic@yiffit.netto196@lemmy.blahaj.zoneFlag Rule
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    2 months ago

    This is a forum. If you don’t get the joke, you can ask and have it explained to you. Most memes are some form of in-joke regardless, so you often have to do a bit of learning the first time.

    What was off about your first comment was recognizing it for what it was before proceeding to miss the joke entirely.

    What was off about your replies was trying to compare it to the Scottish coat of arms; if you know the Scottish coa, you probably wouldn’t associate it with piss yellow and white. If you don’t know it, you wouldn’t mix them up anyway.