eigenket

36 ms·

451.
by eigenket 3y ago
In an informal sense disproving things is easier than proving things. For example theorems often say thing like "all objects of type Y have property X", its very difficult to work out even where to start proving such a statement u
452.
by eigenket 3y ago
The theorem was mostly correct. As stated it was false, but it was true for n >= 8. If you change some not very interesting constants it becomes true for all n. All you need change is the constants for n < 8.
453.
by eigenket 3y ago
Yes! I work in quantum information theory and this recently happened in a subfield called resource theories. The generalised quantum Stein's lemma [1][2] is (or was) a very powerful result that was used for over 10 years to prove thing
454.
by eigenket 3y ago
Here is the relevant text from the article > The comparison, covering 46 months, revealed the 13% decline in mortality—excluding accidental deaths—attributed to RTS,S. Thats a 13% decline in all cause morality, excluding accidental death
455.
by eigenket 3y ago
A reasonable mental model is to view LIGO as a (weird) telescope. Most telescopes work by detecting some form of electromagnetic waves while LIGO works by detecting gravitational waves, but its purpose is pretty much the same as any telesco
456.
by eigenket 3y ago
I think you and I mostly agree here. My point is that the EU commission is bad, its a shitty system that doesn't work well and needs to be reformed. Pointing at the EU as a whole and saying things like "The EU was caught..."
457.
by eigenket 3y ago
I somewhat disagree. You can check out the Heisenberg uncertainty principle here https://en.wikipedia.org/wiki/Uncertainty_principle As you can see there is no mention of time in any of the standard inequalities (exclu
458.
by eigenket 3y ago
> Squeezing means you can go below the limits imposed by the Heisenberg uncertainty principle for a short period of time This is not entirely accurate. The Heisenberg uncertainty (or Schrödinger/Robertson) uncertainty limits still w
459.
by eigenket 3y ago
You should read some of the discussion on this here https://news.ycombinator.com/item?id=37958473 This is largely being pushed by people related to an organisation called "Thorn". https://news.ycombinat
460.
by eigenket 3y ago
Saying "the EU" is wildly oversimplific. A more accurate interpretation (in my opinion) is one particularly stupid EU comissioner (Ylva Johansson, Commissioner for Home Affairs) who is pushing things way beyond her remit. The EU h
461.
by eigenket 3y ago
This is not really a "fresh" scandal, we had a hacker news discussion about exactly this 10 days ago.
462.
by eigenket 3y ago
For individual states I think what you're saying is correct, but I think thinking about individual states is not the right way to go about classical simulation or thinking about complexity. For example imagine we have a big, complicate
463.
by eigenket 3y ago
I don't think this argument really works, because you can also classically simulate superposed states as long as they are stabilizer states, or fermionic gaussian states, or log-space states or whatever else. Similarly you can also cla
464.
by eigenket 3y ago
The obvious dumb classical algorithm for simulating a quantum computer with n qubits runs in O(2^n) time and space. Since 2^log(n) = n is polynomial it follows that "log-space" quantum circuits, I.e. quantum circuits with a logari
465.
by eigenket 3y ago
Not necessarily multipartite entanglement. Bipartite entanglement is covered in this scenario as well. They key point is that if a circuit can be divided up into pieces which aren't entangled with each other then you can understand the
466.
by eigenket 3y ago
Circuits "without entanglement" are divided up into fixed size blocks. I.e. we have n qubits divided up into blocks of size d. Within each block we can do whatever you like, but in circuits without entanglement you will have no ga
467.
by eigenket 3y ago
I am a scientist who has worked on similar questions to this in the past. I think its a very cool area. In my opinion the quanta article is mostly accurate but there are some innacuracies. Where they say there are "three islands"
468.
Quanta Magazine: The Quest to Quantify Quantumness(quantamagazine.org)
8 points by eigenket 3y ago|12 comments
469.
by eigenket 3y ago
Optimizing for that criteria you obtain a "random number generator" which deterministically returns 0.5 every time.
470.
by eigenket 3y ago
> We are told that quantum entanglement cannot transmit information, I am unaware of how rigorously this has been proven/disproven This has been rigorously proven [1]. If you are transmitting information you are doing something in a
471.
by eigenket 3y ago
Maybe I'm dramatically out of touch, but this seems to belong with the metaverse in the "absolutely no one wants this" category.
472.
by eigenket 3y ago
Speaking as someone who lives in Poland. You don't have a damn clue what you're talking about when it comes to Polish politics.
473.
by eigenket 3y ago
> The EU (and the US federal government) simply shouldn't be able to do most of what they do In my opinion this sentence straight up does not make sense. The EU and the US federal government are dramatically different, you can&#x27
474.
by eigenket 3y ago
To be fair that was just a rubber-stamping process to get the law back to the european parliament to be debated and discussed, where it was (rightfully) rejected. It had already been agreed (correctly, at a competitiveness meeting of the co
475.
by eigenket 3y ago
> Assuming that you're taking about liberal democracies, ambassadors and generals don't pass laws that the rest of us have to abide by. Thats fine because the EU commission also doesn't pass laws. It proposes them and the
476.
by eigenket 3y ago
As far as I am aware this is pretty far from accurate. Pretty much everything goes through the "Ordinary legislative procedure" where the comission proposes legislation and the parliament and council have to agree it (Codecision).
477.
by eigenket 3y ago
I don't think its a thing exclusive to conspiracy circles. Its natural for Americans to mentally model the EU as something like the US, with the EU representing the federal government and the individual countries acting like US states.
478.
by eigenket 3y ago
Because the EU doesn't really have much actual power to do anything that impacts normal citizens. Like the EU doesn't start criminal prosecutions or anything against people. If there is some crime you're being prosecuted for
479.
by eigenket 3y ago
Renewables have currently very difficult problems to solve with storage. As far as I know the only sufficiently scalable energy storage method is pumped hydro. Storing enough energy to deal with the intermittency of renewables at the scale
480.
by eigenket 3y ago
I can only speak for myself. I was pretty keen on starcraft and starcraft 2 back in the day, and I made a decision a few years back that blizzard wasn't the sort of company I wanted to support with my money anymore.

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