Communicating With Alternate Quantum Realities?

I actually starting thinking about this about 20 years ago, when I lost my mother. My mother and I were very close. And losing her was very bad for me. But I thought at the time of the theory of alternate quantum realities. (I heard about the theory on Star Trek: the Next Generation. And I believe I read an article or two on it too.)

I just lost her. But in an alternate reality, perhaps she had just lost me. Why then couldn't we two just hook up somehow? Made sense to me, at the time at least.

Of course, much like time travel, traveling to an alternate reality would be near impossible, if not impossible. But then I hear something interesting on satellite TV.

It was about time travel. But I think it still has some value to my case. Some guy in Europe claims to have sent a message back in time. "Quantum tunneling" was what he used, I believe, whatever that is (as you can tell, IANAScientist).

Anyways, I think I do have more support for this theory. Take quantum computers. And quantum cell phones. They make use of the theory of alternate quantum realities. So communicating with these realities is essentially what they are doing anyways? Am I wrong?

Anyways, what I need is a scientist to answer my question--or a very educated layman.

Thank you in advance to all who reply.

 

I think you have a slight misconception that I'll try and clarify but some of this stuff is over my head and even experts heads as well. Quantum physics is dealing with reality, as in our reality, at very, very tiny scales. Now it can be confusing because some of the implications of particular findings of some quantum physics lead physicists to believe there very well could be alternate realities. However, when dealing with quantum physics in our world, the prevailing notion to my understanding is that as particles get bigger and more mass-ive, they lose their "quantumness" and become more of a definite classical state that's more like and more intuitive to how we experience reality.

Many of the extremely bizarre aspects of quantum mechanics such as tunneling, locking, entanglement usually occur for split seconds and/or with very few particles when studied. The fact that they do occur at all is quite fascinating but it's a bit of a leap to suggest something that it then follows time travel is probable with beings as large as us. I find "The Grandfather paradox" to be a seeming insurmountable example of the difficulties to time travel. That's a thought experiment where you travel back in time and shoot your grandfather before he ever had children, effectively eliminating the ability for your parent to be born and therefore yourself as well.

As far as alternate realities go, some of the 'multiverse' theories agree with me more than others. The many-worlds interpretation which kind of seems like the one you are getting at is one that I find in conceptual terms leads to some inevitable absurdities much like The Grandfather paradox, which I'm not too comfortable with.
It's unfortunate, I read about quantum tunneling like a month ago and forgot this great explanation of the phenomenon, the text made it fairly easy to digest which is not always easy to do when explaining quantum mechanics but I found it kind of demystified it slightly from the popular perceptions of it.