A backup account for !CanadaPlus@lemmy.sdf.org, and formerly /u/CanadaPlus101 on Reddit.

  • 1 Post
  • 11 Comments
Joined 3 years ago
cake
Cake day: November 19th, 2023

help-circle



  • I’ll admit, I only have a fuzzy understanding of even the basics of Hamiltonian mechanics. I understand quantum computing, though, and that evolution of a circuit is a unitary (linear) operator/matrix. So, wouldn’t continuous evolution be a one-parameter Lie subgroup of the unitary operators over your Hilbert space? Any eigenvalue would have to be a root of unity, with the exact one corresponding to rate of change in phase, because otherwise you end up with probabilities not summing to 1.

    I think it would be analogous to the normal modes for a classical standing wave, which are also used as examples of an eigenfunction.

    Maybe the more relevant question is if nonequilibrium, dynamical quantum systems can also be said to be quantised in the same way. Can they?

    If the problem is easier to think about with a time-dependent Hamiltonian, you can use the Heisenberg formulation of quantum mechanics, which makes the wavefunctions static and lets the operators evolve in time. This can be helpful in a number of situations—typically involving light.

    That sounds wild!





  • it’s happening NOW.

    Oh, so it’s over a moment from NOW?

    Nah, it’s slowly and continuously happening. It has been for decades, although with greater rate as we’ve ignored it.

    buildout all the grid you can, it won’t be enough for everyone, and when it collapses, everyone’s fucked.

    We’ll need X amount of power. If the grid can supply that, we won’t directly cook. It’s more than now, but not massively more.

    Did your parents have any children that lived? I bet they regret that.

    No u.





  • Yes, I gather that Stalin was the iron fist type, rising though pure ruthlessness,

    That gives him too much credit. Stalin was relatively inconsequential in the rise and initial rule of the Bolsheviks, which happened under Lenin with Trotsky as a strong second in command. He just managed to palace intrigue his way to the top after Lenin died.

    He did keep his power by purging everyone all the time, which is another thing that seems to work better on humans than pure rationality would suggest it should. People were never risk-tolerant enough to stop him, but also never risk-averse enough to avoid working for him, probably out of hubris.

    I’m currently working with a German guy, and am trying to.figure out how to broach the subject of how did common, decent people become so indoctrinated to an extreme right ideology.

    I’m going to recommend Ordinary Men, which is a book cataloging and analysing accounts of members of one of the battalions responsible for machine gunning people into ditches.

    A random German won’t necessarily be super into history. A random Israeli is liable to say it had nothing to do with fascism and everyone is always against the Jews specifically. History is still going on there, and there’s no objectivity.