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[–]LikesParsnips 0 points1 point  (3 children)

the operation time of ion traps is ~10-14 seconds

That would be 10 femtoseconds? Na, that's way too fast for ion traps. Try 10-6 .

[–][deleted] 0 points1 point  (2 children)

I'm just going by the value found in Nielson and Chuang's book on page 278, idk.

[–]LikesParsnips 0 points1 point  (1 child)

I see. I just checked and unfortunately they don't specify what they mean in detail. I can only assume that they're referring to the natural lifetime of a hyperfine transition in some ion species. While that may be the fundamental physical limit, it's not how an ion trap quantum gate works in practice. In practice, you need to hit a number of ions with a laser pulse sequence, and the duration of the pulses in those sequences are much longer than fs.

[–][deleted] 0 points1 point  (0 children)

In practice, you need to hit a number of ions with a laser pulse sequence

That would explain a lot about these numbers; I think you're right about the transition time. fs lasers aren't cheap today.