connection between string theory and quantum physics

I was thinking about string theory the other day, and I thought that some of the details of string theory have implications for quantum physics. In particular, I was wondering if the vibration of strings can account for the "unstable" nature of states that particles can be in. For example, could something like spin change its value depending on exactly what state the vibration of a string was in? I don't really know the relation between spin and string vibrations, but I suspect that vibrations, being so variable as they are, must have variable effects on our measurements of particle states.

Also, some string theorists believe that strings can vibrate in up to 10 or 11 dimensions. I was thinking about this, and I also thought about the concept of worm holes - that is, the idea that if one traveled through a worm hole, one would almost instantaneously travel from one point in space to another. That is, traveling through a worm hole is like "trans-dimensional" travel. Now, thinking about this, and thinking about string vibrations in multiple dimensions, I thought that a string could potentially extend itself, through its vibrations, into one of the 10 or 11 dimensions and, supposing these extra dimension it extended into was like a worm hole, it could poke its head out somewhere else in the common 3 dimension of our space. That is to say, a crest in the vibrational wave of the string could have a high enough amplitude that it reached far enough into the extra dimension that it reappeared elsewhere in "normal" space. Could this not account for the phenomenon of superposition?

Just a few thoughts, but I would like to hear what other people think. Is this line of thought plausible?

PS - I realize not everybody buys into string theory - I'm not particularly settled on the matter myself.