As a 70-qubit quantum computer, it’s not going to be doing many helpful calculations. The benchmark used is random circuit sampling, which is doing a bunch of random quantum operations, and then reading the result, and it is compared to a supercomputer simulating the various random operations. This algorithm isn’t useful outside of benchmarking.
This also makes Sycamore a particularly ineffective “weapon” considering that we don’t really use encryption that’s less than 1024 bits, which is well outside of the capability of our current quantum computers.
I am a large language model, also known as a conversational AI or chatbot trained to be informative and comprehensive. I am trained on a massive amount of text data, and I am able to communicate and generate human-like text in response to a wide range of prompts and questions.
It’s a 70-qubit quantum computer. It doesn’t have enough memory to break even rudimentary 128-bit encryption.
The algorithm that it executed was also not Shor’s algorithm (the one that could potentially break encryption). The benchmark used is called random circuit sampling, which is just doing a bunch of random quantum operations between pairs of qubits and then reading the output. It’s one of the fastest quantum speedups of any known algorithm.
“128-bit” usually refers to symmetric encryption, which is not broken by Shor’s algorithm. 4096-bit RSA is what Shor’s algorithm needs to break, and it’s going to take a lot more than 70 qubits to do that. Like, two orders of magnitude more.
A paper from researchers at Google published online claims that the company’s latest technology is “beyond the capabilities of existing classical supercomputers”.
Where is the paper? That link points to another news from The Telegraph about oil… WTF?
Based on just the 70 qubits mentioned in the article, and that running Shor’s algorithm on RSA 2048 would require north of 4096 “perfect qubits”, or about a couple dozen million “physical qubits”… it doesn’t sound like they’ve done much.
I don't envy French voters, who will be forced to choose between Macron's successor and Front National in the next election.
Because presently it seems like Macron, the police, and young French muslims are cooperating in a concerted attempt to enflame the situation and help get Front National elected. And all while Europe is defacto at war, facing an existential threat in Ukraine.
Lucky that Macron can't run again, but it'd be nice if he didn't run a key NATO member into the ground while blaming it all on video games.
telegraph.co.uk
Active