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comnetxr

HN member
Joined
Thu, Aug 03, 2017, 4:11 PM UTC
HN karma
295
Public activity
50 items

About comnetxr

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Recent public activity

  1. comment
    Comment #39075725

    n^n^n^n^n^n is an upper bound for general n, but the special case of only 2 people can be done with just 1 query. the algorithm is just to have person A cut into two equal slices a…

  2. comment
    Comment #32193745

    Yep, this is it. The key is not that there are two time dimensions but two independent time translation symmetries, each which translates the system by a different period of time c…

  3. comment
    Comment #31472494

    does anyone know if you could take a window and make it always be in the background -- the reverse of "always on top", say "always on bottom"? doesn't seem to be an option on Mac o…

  4. comment
    Comment #31471652

    looks great. wish I could break it free from the browser though. a browser tab can't really be the backdrop to my work, and clicking into a browser tab just to view the visualizati…

  5. comment
    Comment #28844525

    My understanding is that this project is more of a way for established researchers in a very theoretical field to start thinking about climate while using their existing skill sets…

  6. comment
    Comment #24405273

    In the long term, if we eventually make it to the scenario where we stop putting CO2 into the atmosphere on net, then each kg of CO2 input into the atmosphere must be compensated b…

  7. comment
    Comment #23418891

    Is this AI generated text? It doesn't provide any context a normal human would want. The attempt at providing context feels exactly like an AI searched a database of summaries of r…

  8. comment
    Comment #22134060

    how do you know the passionate to the point of addiction Yang supporters are real? I think its likely that many are, but that there are also many passionate supporters of the other…

  9. comment
    Comment #22133955

    Someone should make a Twitter-like that verifies posters at various levels based on humanness/geographic locale and other characteristics. Then posters could limit conversations to…

  10. comment
    Comment #21336480

    There seems to be a lot of confusion here about the complexity, for example calling the simulation here "in the linear regime" due to IBMs result. This is inaccurate. A source of t…

  11. comment
    Comment #21336441

    No. I think this is where your logic is off: "Furthermore, I think that if I try to read an entangled state, it's as if I am reading the entire state all at once" You can't read th…

  12. comment
    Comment #21336133

    There seems to be a lot of confusion here about the complexity, for example calling the simulation here "in the linear regime" due to IBMs result. This is inaccurate. A source of t…

  13. comment
    Comment #21197184

    > The climate change argument for EVs is kind of weak, since you still have to produce the electricity I also find this line of reasoning problematic. The climate change effect of …

  14. comment
    Comment #21127036

    The question should not be whether this is too costly as compared to jet fuel, but at what carbon price is it cheaper than jet fuel? Once the cost of carbon is at the long term lim…

  15. comment
    Comment #21111481

    I had an idea for a minimal change to improve a Reddit-like site, perhaps you will find it interesting: split the concept of "subreddit" into "tags" and "communities". Tags: much o…

  16. comment
    Comment #21110932

    has anybody proved something interesting in Lean? Perhaps not too difficult, but some proposition that might take a couple of days of work done in hours? I'm all for encoding found…

  17. comment
    Comment #21076820

    Imagine if grocery stores forced us to choose one of a few dozen grocery "insurance" memberships to buy groceries, and negotiated directly with the insurers. No prices are labeled …

  18. comment
    Comment #21076235

    In a sense, wasn't the choice to not negotiate drug costs itself the result of a negotiation? I believe the way it works is that health insurers and providers threaten to fund fear…

  19. comment
    Comment #21076154

    What other goods is the US Gov the sole buyer of, for which the sellers can't easily shift to other customers? Cop cars clearly doesn't apply, as carmakers have other customers. Do…

  20. comment
    Comment #21044478

    Therefore the win here is that they have verified that a 50 qubit quantum computer "works" (success rate > 10^-3 > 0.) No classical computer could verify a 100 qubit quantum comput…

  21. comment
    Comment #21044430

    There's additional piece to this that you are missing: while the classical simulation is _hard_ (i.e. increasingly hard for larger and larger number of qubits or circuit depths), i…

  22. comment
    Comment #21044268

    They explain in the paper that the quantity plotted in Fig. 4 can also be interpreted as a probability of zero errors of running the circuit. You can see that it goes down quickly …

  23. comment
    Comment #21044196

    I'm not an expert, but you are correct in that there is no error correction here, and error correction is still a long way off. Around 2016, realizing that running useful quantum a…

  24. comment
    Comment #21019280

    It may be that the use of photons gives long coherence in these devices as compared to other types of potential qubits, but then you still have to ask about (coherence time) / (gat…

  25. comment
    Comment #21019248

    Any evidence that these are quantum coherent devices? In seems like the only reference in the paper is that "future improvements" will allow entanglement generation. I don't think …