# Tag Info

## New answers tagged decoherence

0

The Copenhagen interpretation is rather vague. Let's take the most definite version in which the wave function describes reality up to the collapse. Since no description has been given of the mechanism of the collapse, there's a lot of room to monkey about with the predictions of what will happen as a result of collapse. When you ask whether other ...

3

Let's shift on a simpler quantum system: take a spin. Assume that your spin has been prepared aligned along x axis (eigenstate of $\sigma_x$). Your spin is in a superposition of state having $\sigma_z$ eigenvalue +1 and -1. When you actually measure the spin along z it will collapse on one of the eigenstate.It will then remain in this state (as long as you ...

Top 50 recent answers are included