A measured spin is still a Qbit

[Gary Venter]

TL;DR

A Qbit with up probability 1 - (10^-75) would most likely still produce a reading of up, and an up reading does not mean that the up probability is 1.0 to billions of decimal places.

A Qbit with up probability 1 - (10^-75) would most likely still produce a reading of up, so an up reading does not mean that the up probability is 1.0 to millions of decimal places.

The spin detector is a physical device made of atoms. None of its surfaces are pure mathematical planes or lines. Just because it has oriented a particle in the x-direction in a way to produce a reading of up does not mean that it is oriented exactly in that direction with zero uncertainty or has stopped having Qbit spin.

 

[PeterDonis]

@Gary Venter do you have a question?

 

[DrClaude]

Those are words. What they mean put together like this I cannot fathom.

 

[Vanadium 50]

As Monty Python said "It's not just the total number of words. Getting them in the right order is almost as important."