1. One way to build a qubit (e.g. a quantum bit, used for quantumn 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 Z direction, and also time-dependent AC fields of the form B(t) = B, (cos(wt)# + sin(wt)) . (1) Finally, you have a powerful refrigerator, that can cool your system down so that it is in its lowest energy state. (a) (b) Your first task is to prepare your qubit in the state | T) (usually called |0) in the quantum 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 \"fip your bit\