Phase transition in Random Circuit Sampling · HackerPapers discussions

Phase transition in Random Circuit Sampling — mentioned by mirekrusin

Tue, 11 Jul 2023 09:41:32 GMT

Do you have links to some results for this 433 processor? The only results I've seen is this [0] from April which is 70 qbit and it's all about fighting with noise. It looks like overcoming noise is exponentially harder with more qubits and this whole quantum thing may never work for practical problems after all? [0] https://arxiv.org/pdf/2304.11119.pdf

Paper and discussion history. A mention is not an endorsement.

Phase transition in Random Circuit Sampling — mentioned by fsh

Mon, 10 Jul 2023 22:05:29 GMT

Google's "quantum supremacy" paper was about a 53 qubit chip in 2019 [1]. This year, they reported having 70 qubits [2]. Looking at the papers (and supplements), the gate fidelities and qubit lifetimes have stayed roughly the same. This really doesn't look like anything like Moore's law to me. [1] https://doi.org/10.1038/s41586-019-1666-5 [2] https://doi.org/10.48550/arXiv.2304.11119

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Phase transition in Random Circuit Sampling — HN submission

Mon, 03 Jul 2023 22:26:07 GMT

Phase transition in random circuit sampling [pdf]

8 points; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.

Phase transition in Random Circuit Sampling — mentioned by deepburner

Mon, 03 Jul 2023 20:32:41 GMT

Quantum Computing/Information researcher here. This article is largely garbage, the original (~2 month old) paper is surprisingly readable [0] and I suggest you to check it out. Here's my $0.02: The efforts of the Google team is commendable in that they're trying to squeeze as much out of their noisy systems as possible until error correction is here (they need to, to justify their existence after all) and they are aware of the shortcomings of the paradigm. But personally I don't see anything useful coming out until error correction and number of qubits are improved many orders of magnitude…

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Phase transition in Random Circuit Sampling — mentioned by mikewarot

Mon, 03 Jul 2023 03:18:42 GMT

The cited paper[1] references "random circuit sampling" which is defined in [2] which then gets so heavy into abstract math, and I give up. Can someone explain this in terms an EE or programmer can understand? [1] https://arxiv.org/abs/2304.11119 [2] https://arxiv.org/abs/2007.07872

Paper and discussion history. A mention is not an endorsement.