Thanks, Demystifier.
Can you provide a little more information? Would a reverse quantum computer violate the second law itself? If so, in what way? Or is there some other physical principal that implies it would be impractical? If so, what is that principal? Or is there something I'm...
Thanks, JesseM. Based on your comment, I see that part of what I said was definitely wrong. Even if a reverse (or maybe "inside out" is a better term) quantum computer were possible, the search mechanism wouldn't work as I described. You couldn't just dig one hole somewhere in Texas and know...
In a standard quantum computer, the computing machinery is kept in a superposition of states, with each state doing the computation on different data. It's like having the superposition of a bunch of cats in a box with each cat doing a calculation on different data. The more complex the cat...