3 ms·
> They barely have any control over what their gates do. I don't understand this, could you explain? My understanding is that the gates are perfectly normal
by FartyMcFarter 7y ago
> They barely have any control over what their gates do.
I don't understand this, could you explain?
My understanding is that the gates are perfectly normal quantum gates, which they use to connect qubits in a programmable way. Due to the probabilistic nature of quantum computing, running this circuit generates samples from a random distribution.
- shroedingaway 7y agoI attended a Google talk where they acknowledged difficulty in controlling their device. That was given as the motivation for running problems that consist of "random gates".
- FartyMcFarter 7y agoMy understanding from reading Scott Aaronson's FAQ is that the "random" in "random gates" just means that they pick a random circuit to evaluate. But this circuit is known, just like a program can pick a random number and then print it out. The fact that quantum computing behaves "randomly" by nature further complicates the discussion :)