From: *smitra* <[email protected] <mailto:[email protected]>>
On 02-05-2018 03:21, Brent Meeker wrote:
How will the person verify it? Reversing the computation will reverse
the person and erase their memory.
Brent
It's a simple two step measurement process where you (as a virtual
person simulated by the QC) perform a measurement that tells you that
the spin (represented by a qubit) has been measured without giving you
the result. And then you perform the next measurement where you
actually measure the value of the spin component. It can then be shown
that there exists a unitary transform that will restore the original
spin state that will preserve the record of the first measurement.
Saibal
You can prove anything in a simulation, because you get to choose the
physical laws that will be obeyed. How do you know that the simulation
will bear any relation to reality? A measurement is something that
leaves a permanent (un-erasable) record.
Bruce
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