ziofill

25 ms·

481.
by ziofill 2y ago
Physicist working on QM here. At the macroscopic scale we are led to believe that the properties of a system have a value regardless of whether that value is “known” externally to the system. Then a measurement process would simply reveal t
482.
by ziofill 2y ago
Yep. That keeps happening e.g. in the mountains in northern italy. Cows with huge wounds stumble back from the field, it's horrific. And when the farmers kill a wolf it's an outpour of indignation from animal welfare :/
483.
by ziofill 2y ago
Is this going toward 3D games entirely "hallucinated"? That would be amazing.
484.
by ziofill 2y ago
Very nice! I hope you folks will go far. Best of luck :) That said, the entire field is still so far from a seriously useful QC that I still wouldn’t bet there’s a secret one somewhere in some government lab. Those are my two cents, and I m
485.
by ziofill 2y ago
I’m a physicist working on QC. I know we actually don’t know if a “secret” QC exists somewhere, but given that major theoretical and engineering breakthroughs are needed to build a fault tolerant one (and all QC companies are facing this re
486.
by ziofill 2y ago
damn you constant factors [shakes fist in the air]
487.
by ziofill 2y ago
In Wirtinger calculus ( https://en.m.wikipedia.org/wiki/Wirtinger_derivatives ) you consider a complex variable and its conjugate as independent. This simplifies a lot of things e.g. Cauchy Riemann becomes just df/d
488.
by ziofill 2y ago
I agree 100%. This AI wave hopefully if will force universities to rethink the way students are assessed. When I was faculty I had the luxury to teach small classes, and I could always be extremely flexible with assessments so I could asses
489.
by ziofill 2y ago
Would you be able to share some links to these techniques? They sound related to something I’m working on but in an entirely different field.
490.
by ziofill 2y ago
What are the “consumer” applications of 3D splatting? It looks super cool, and I can see applications for the next gen of maps, but I don’t understand if it’s going to be an end user technology or not.
491.
by ziofill 2y ago
Being a political representative is not a regular job. It should come with some finite term, no matter how good you are.
492.
by ziofill 2y ago
Isn’t Penrose adding some extra though, when he says the brain does some sort of “uncomputable” process?
493.
by ziofill 2y ago
it's a bit slow with all the animation... but nice idea
494.
by ziofill 2y ago
A program that can produce copies is the same as a copy. How that copy comes into being (whether out of an algorithm or read from a support) is related, but not relevant.
495.
by ziofill 2y ago
It actually depends how this sentence is intended. There exist quantum repetition codes: the Shor code is the simplest example that uses 9 physical qubits per logical qubit. Since the information is quantum it needs majority voting over two
496.
by ziofill 2y ago
What a lovely question. The estimate is 10-100 photons/bit (minimum). If you’re curious about how many bits a single photon can carry, in controlled settings (tabletop quantum optics) a single photon can carry log(n) bits where n is
497.
by ziofill 2y ago
That’s because his results are about pure information (and in the limit for infinite string lengths), so sooner or later some hardware will hit onto those limits or tend to them.
498.
by ziofill 2y ago
2^60 is very little! Is it known what fraction of them has an insanely large run time?
499.
by ziofill 2y ago
There are only so many Turing machines that we can possibly describe with a not too large amount of symbols such as 1RB3LB1RZ2RA_2LC3RB1LC2RA_3RB1LB3LC2RC. The fact that some of these can make such a crazy large number of steps before halti
500.
by ziofill 2y ago
Not trying to stir anything up, but one can't not recognize the disparity of consequences for saying something "false" that "may affect a business" between Trevor and basically any politician who's done the sam
501.
by ziofill 2y ago
I don't think the amplituhedron should be given so much substance as a real structure beyond spacetime. It is a calculation tool.
502.
by ziofill 2y ago
I’m Italian too. It’s just depressing for us to see so much public money percolating to organized crime (as it happens with many public projects). Who knows how many more billions will follow…
503.
by ziofill 2y ago
One interesting thing is that in the quantum description of position and frequency (i.e. position and momentum if you account for hbar), it is not possible to cram two different functions into one in this way because functions that differ b
504.
by ziofill 2y ago
For a split second I thought how ironic there were 787 missed inspections.
505.
by ziofill 2y ago
Are all paywalled articles on the archive? How do they not get sued or something?
506.
by ziofill 2y ago
After using my first macbook for about 8 years (bought in 2005), I went to the Apple Store in Glasgow for a new battery and they just gifted it to me. I asked them why and they replied “It’s a random act of kindness”. Well, it did tattoo in
507.
by ziofill 2y ago
I use this paper whenever I teach information theory. If you are mathematically inclined, I’d recommend you to read the demonstration of his two main theorems, it’s illuminating.
508.
by ziofill 2y ago
Physicist here. It highly depends on a bunch of factors (the type of qubits, the error correcting code, the error rate, the algorithm…), but a ballpark number for practical usefulness is 1 million physical qubits. Keep in mind that qubit re
509.
by ziofill 3y ago
If you, like me, need to use einsum programmatically you'll find the less-known stringless interface way less cumbersone: e.g. matrix multiplication of A and B: `np.einsum(A, [0,1], B, [1,2])`.
510.
by ziofill 3y ago
I always wondered why bother with quaternions and abstruse math when at the end of the day they behave like some matrices of floats.

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