The mechanics of Quantum mechanics is two fold- the material power to apprehend and measure the materials involved, and the spiritual method (and when I say spiritual, I mean intellectual understanding and motive) of the activity that one observes, and wants to influence.
Now, if we imagine that all living beings exist in communion with this center, then you are talking about 7+ billion human spirits, and who knows how many animal and plant spirits. Let us not forget disincarnate spirits as well, and... who is in command of this realm? Certainly we have power to influence it, and I agree that meditation and contemplation can get you to that sweet gooey place of nothingngness so as to start threading the weave, but do you think, even with your vaunted ability, that you can overpower the Divine persons that inhabit or interact with said space? Now, if you do not believe in these entities, that is one thing, but what about the Will of the rest of the living, animated and spirited creatures? Would you say that an informed and practiced monk has more power than say, a specifically trained warrior, or a spiritually evolved priest? Or even your mom, trying to get you to do the dishes?
Im not certain that anyone can actually overpower these forces, it would appear to be somewhat democratic, but if you believe in a designer, Id assume that anyone can be over ruled.
Let us remember that to be enlightened we would have to have all knowledge of all probabilities, and know too, the elements on a sub atomic level what causes those probabilities. You could use the spirit of things, as most magicians do- earth, fire, air, water, or you could use the named sub atomic particles as a physicist or chemist would do, but even then, you would have to know how to build from the ground up, and navigate the Will of the living beings that inhabit creation to get your Will truly accomplished. This sounds more like an act for God, or some infinitely aware and tied in super computer. On a small scale, I think it works to some degree, but on the larger scene, it seems impossible.
Crowley has advice for this: he says that if it is in a things nature, it can be influenced to participate in that action. I have experimented with these things to some degree and can vouch for their validity, but it was after my rite of the Abyss that I began to see how pretentious and preposterous it all is, and that it is better to simply form a path of logical, moral, and practical patterning of how life should function than to experiment with any willful act, for as you say, intention is all that is necessary. We do not need to conjure up emotion or spirit to force a thing to occur. It is better to form a smooth straight line than to beat down the door of these places. When your mind and your Will are in line, it will occur naturally unfolding. I honestly believe that any ceremonial act or prayer is just to prove intention, and that after said prayer has been received, the real effort of getting in line with reason takes place (reason, by the way, not liked by Thelemites).
One of the ways to begin the comprehension aspect of quantum reality is to meditate on Chaos, which is a staple concept in all mysticism, though put off by religions- because religions believe they have conquered it. This age has been pushed to consider this topic, I believe by the secret masters that are not incarnated- all so that human beings will begin to reinvestigate natural philosophy and claim what Greece left us in the sciences. On a ground level of spirituality and civil action, this is causing a lot of tumultuous choices and events, but it benefits us long term, because of what science has now brought us. I see this as a cycle of things- Chaos/Order, constantly exchanging the lead, and bringing life to a new point of security and prosperity. How much longer will this current phase, which I think is being led by Chaos magicians last? Probably until disaster, where we withdraw from the advancing methods and stabilize what we have secured from our explorations. In my opinion, all we have left to master is shelter and food for all life without defeating the life that provides these things, instant transportation, and the wild Will of the ignorant. When human beings can perfect a stable order, we will no longer need to mine the quantum. This probably will not occur for a long time, if ever, because children love to run.