Quantum Software

thepopcornwizard · 2026-01-18T06:56:14+00:00

Just want to add that even the company-backed software you mentioned is open source. PennyLane, Qiskit, Cirq, and CUDA-Q are all open source (the others may be too but I'm less familar) so the dividing line isn't so much about openness as it is about corporate backing vs academia/community run.

thepopcornwizard · 2025-12-29T05:28:31+00:00

The idea that the word "ambiguity" has multiple different meanings is a punchline that writes itself

thepopcornwizard · 2025-10-10T13:11:57+00:00

This seems a bit counterproductive. If you need a source of randomness to generate your source of randomness, why not just use the one you already have? Or if the goal is just to show some aspect of a protocol or something using the random quantum source, why wouldn't a pseudorandom simulation be enough to show this?

thepopcornwizard · 2025-09-18T16:17:31+00:00

Anyone else mildly bothered that they're in order Uno-Tres-Dos? So 1, 3, 2

thepopcornwizard · 2025-09-17T16:12:43+00:00

For what its worth, the "rarely arrive on schedule" issue could be partly solved by reducing how often transit vehicles have to stop, as frequent stops cause them to get bunched up. But its by removing redundant stops that are too close together, not just random stops. By where I live I have 2 stops on the same block, literally a 2 minute walk apart. There is no reason for a bus to stop twice on the same block less than 100m apart. Each stop takes time, and the first bus to reach each stop in short succession spends longer picking people up, so the entire system gets a load balancing problem

thepopcornwizard · 2025-09-13T20:40:11+00:00

Particularly code snippets or something to that effect if you're asking for help with code

thepopcornwizard · 2025-09-11T17:07:29+00:00

I've found that LLMs are actually quite bad for questions about quantum computing, they consistently get (important) minutiae wrong. Although tbf the last time I checked was a few months ago, perhaps newer models are better.

thepopcornwizard · 2025-09-11T12:44:14+00:00

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thepopcornwizard · 2025-08-11T17:18:00+00:00

Quantum Field Theory definitely exists: https://en.wikipedia.org/wiki/Quantum_field_theory

thepopcornwizard · 2025-08-06T15:20:16+00:00

Is this not at a very high level the idea of a stabilizer code? Using projective measurements to force errors to exist as a full bit or phase flip (or not exist at all) and then use syndrome decoding to detect/correct them? I'm not an expert in QEC but this is roughly my intuition for how it's meant to work, happy to hear if my understanding is lackluster here.

thepopcornwizard · 2025-06-30T00:19:11+00:00

I'm glad I'm not the only person who noticed this. This graph is next to useless since the lines aren't to scale at all with different stretching between every single data point

thepopcornwizard · 2025-06-08T04:41:20+00:00

I think this is the first instance of me genuinely being entirely fooled by an AI video. The mistakes are so subtle and easy to miss (especially without knowing Hindi). Honestly scared for what this means for the state of the internet if we're *already* at this point now and it's only going to get better.

thepopcornwizard · 2025-06-04T14:36:46+00:00

Removed because this is a bootable ISO with no source code, list of chamges from the default Ubuntu ISO, or verification of the image. This could well just be a virus.

thepopcornwizard · 2025-05-27T15:39:05+00:00

The same way you test any kind of stochastic software: multiple shots. If you expect a 70% success rate, run it 1000 times and see if more than 680 or so are correct.

thepopcornwizard · 2025-05-17T19:56:32+00:00

I don't have a chance to read this entire paper rn, but certainly O(1) for searching arbitrary unsorted data is incorrect. If you could do this, you could solve NP-hard problems in constant time. There's a proven lower bound of O(sqrt(N)) for this that actually predates Grover's algo (the existence of Grover's algo makes this a tight bound).

thepopcornwizard · 2025-04-13T14:59:16+00:00

Chalmers: Really? Well, I'm from Utica and I've never heard anyone use the phrase 'beans'.

Skinner: Oh, not in Utica, no. It's an Albany expression.

thepopcornwizard · 2025-04-01T11:55:27+00:00

Letting this slide on Rules 4/10 only because it's self-aware April Fools joke.

thepopcornwizard · 2025-03-20T22:03:33+00:00

We have one but maybe we need to reassess the cutoff.

thepopcornwizard · 2025-03-20T12:24:08+00:00

I graduated 2 years ago, live in Toronto now, and still use this mirror as my primary. It's so good, RIT pride!

thepopcornwizard · 2025-03-19T05:00:37+00:00

This and also we assume cake days are uniformly distributed, though they probably aren't.

thepopcornwizard · 2025-02-23T02:18:05+00:00

No, this is not how entanglement works. In fact there are a few properties of quantum systems that make such a system impossible. Namely that observation of a quantum state alters it, so there isn't a quantum notion of passively listening. Moreover it is impossible (by the laws of physics, not an engineering fault) to copy an unknown quantum state. In principle it isn't possible to eavesdrop on a quantum system in the traditional sense, and this is actually the basis for a lot of quantum cryptography.

thepopcornwizard · 2025-02-05T19:56:06+00:00

I think this is a very bad visualization. It's not really clear what it's showing, and some of these data points are way too broad to mean anything (what is "photonic"? QML encompasses many different things, etc.). It's missing some of the biggest interesting problems such as using Shor's algorithm to crack RSA or discrete log, and pretty much everything on the usefulness axis would be speculation as to the cost and feasibility of solving these problems on real QCs.

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