On Sunday, October 13, 2019 at 11:10:58 PM UTC-5, Alan Grayson wrote: > > > > On Sunday, October 13, 2019 at 5:50:35 PM UTC-6, Brent wrote: >> >> >> >> On 10/13/2019 1:08 PM, Alan Grayson wrote: >> > What are YOU talking about? I just made a GUESS about the decoherence >> > time! Whatever it is, it doesn't change my conclusion. If there's a >> > uncertainty in time, are you claiming the cat can be alive and dead >> > during any duration? Is this what decoherence theory offers? AG >> >> Yes, part of the cat can be alive and part dead over a period seconds. >> Or looked at another way, there is a transistion period in which the cat >> is both alive and dead. >> >> But the main point is that this time had nothing to do with >> Schroedinger's argument (he knew perfectly well the time of death was >> vague); his argument was that Bohr's interpretation implied that the cat >> was in a super-position of alive and dead from the time the box was >> closed until someone looked in. >> >> Brent >> > > Agreed. Without decoherence, the cat would be in a superposition of > alive and dead from the time the box was closed until someone opened > it. With decoherence, it would be in that superposition for a very short > time, the decoherence time, when it would be in state, |decayed>|dead> > or |undecayed> |alive> before the box was opened, provided it was > opened after the decoherence time. So, as I see it, decoherence just > moves the "collapse" earlier, before the box is opened, and does not > resolve S's problem with superposition. The cause of the problem, or > paradox if you will, is the superposition interpretation of the radioactive > source. AG >
How would you describe the "states" of qubits in IBM's Q (quantum computer)? @philipthrift -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/5671218f-c51c-4445-a56e-2e07356e88ad%40googlegroups.com.
