1. One way to build a qubit (e.g. a quantum bit, used for quantum computing) is to isolate a single spin-1/2 particle. In this question, you will think about how you might build and manipulate this qubit. You have at your disposal the qubit itself, and a powerful magnet that can apply static magnetic fields in the 2 direction, and also time-dependent AC fields of the form B(t) = By (cos(wt)d + sin(wt)g) . (1) Finally, you have a powerful refrigerator, that can cool your system down so that it is in its lowest energy state. (a) (b) (c) (d) Your first task is to prepare your qubit in the state | 1) (usually called |0) in the quantumn computing literature). Describe a way that you can do this, using your refrigerator and your magnet. Your next task is to develop a method to \"flip your bit\