Try to understand the blocksphere

Academic discussion of all things quantum computing from hardware through algorithms. Not the place for business speculation, memes, or philosophy. Hello everyone, recently I found out about quantum computing/mechanics and started to read and then I see that a block sphere is used to visualize a qubit , but then I keep looking at it and couldn't understand what it is telling, anyone help me understand what It's telling please Basically the idea is that when you are superimposing two states, there is a relative phase difference between the two when they are put together which changes what the combination looks like. So the top of the sphere represents purely one state, the bottom represents purely the other, and the phase doesnt really matter when its just a pure state. The middle is when you have an equal superposition, but rather than being one point there is a whole circle, representing the range of possibilities of that superposition. Where you are on that circle represents the phase difference between the two states. As you go around the circle, thats like the phase going from 0 to 2*pi. Create your account and connect with a world of communities.