Benjamin: Oxford team aims to demonstrate linked two-module quantum computing within a year
“Sorting out thoroughly and demonstrating this idea of two modules, which fully link together to form a single unit in practice. So, you know, to the programmer, it's a single quantum computer. The engineer knows that it's been broken into two pieces with an op…”
Benjamin's team plans to scale using networked five-qubit modular units
“We actually are planning to build a machine, which will be made out of modules, which each one is a small quantum computer, and by the way, so small that on its own, it's not good for anything. Even as few as five qubits, right? And then we have modules, and w…”
Benjamin: Entanglement distillation allows low-quality links to achieve high internal fidelity
“As long as your boxes have a very good memory, they do have a very good memory, as long as they have very good quality internal operations, which they do have, then you can take a poor quality link and boost it by using it a few times into effectively a very g…”
Benjamin: Quantum computing labs worldwide currently operate at 10 to 20 qubits
“Where we're at right now is that various labs around the world can give you 20 qubits. Ish. 10 to 20.”
Benjamin: First useful quantum algorithms in the coming year will skip error correction
“Now, for the first quantum algorithms that we made, you know, the first serious ones that might do something useful, that perhaps we'll see in the coming year, ah, that's probably going to be the approach.”
Benjamin: Oxford quantum researchers achieve 99.9% gate fidelity
“But 99.9, which is what the guys here in Oxford can do, is 10 times better than the threshold.”
Benjamin: Quantum error-correction threshold is now around 99% fidelity
“So now the threshold is about 99%. If you've got 90, if things work correctly in your quantum computer, 99% of the time, that's the turning point.”
Benjamin: 1990s quantum fault-tolerance threshold required 99.9999% fidelity
“And now the threshold when these results were first discovered in the nineties was about 10 parts per million. So I have a many nine, 99.9999 was the kind of level of precision that you would have to have in order to control your quantum computer and take the …”