Strilanc / Quirk

A drag-and-drop quantum circuit simulator that runs in your browser. A toy for exploring and understanding small quantum circuits.

http://algassert.com/quirk

Conditional incoherent amplitude displays are showing wrong magnitudes

Strilanc opened this issue 5 years ago · comments

Craig Gidney commented 5 years ago

Example: https://algassert.com/quirk#circuit=%7B%22cols%22%3A%5B%5B%22H%22%2C%22H%22%2C%22H%22%5D%2C%5B%22%E2%80%A2%22%2C%22Z%22%5D%2C%5B%22Amps1%22%5D%2C%5B%5D%2C%5B%22Amps1%22%2C1%2C%22%E2%80%A2%22%5D%2C%5B%5D%2C%5B%22Amps1%22%2C1%2C%22%E2%97%A6%22%5D%5D%7D

Adding controls results in the total squared amplitude being less than 100%.

Craig Gidney commented 5 years ago

Fixed by #438; will be in next release.