Forcefields (the science fiction kind)

[Xyph]

As far as I'm aware, there's nothing in physics at the moment that would even remotely suggest the possibility of creating the sort of forcefields that act as solid barriers except to certain wavelengths of light (like the visible range), and can be "projected" at will (unlike glass and plastics, for example).

 

 

But that said, am I wrong? Is there anything whatsoever in the physics of today that could be used to create something like a forcefield? I've read some articles on using plasma shielding, but that seems to be mainly to shield against radiation, and although one article made allusions to stopping solid projectiles with an extremely dense version, I'm somewhat skeptical that this could actually be done.

 

If there is nothing in today's physics, what are the chances such a field will ever emerge? (I'm guessing minimal at best, but I could be wrong.) If it did, what field of science would it be likely to come from? Quantum mechanics? Something String-Theory related? I'd appreciate your thoughts on the topic.

[[Tycho?]]

Nothing that I really know of. One could use powerful electric fields to repel charged particles, or huge magnetic field manipulation could probably deflect larger objects. Nothing like the classic star-trek force field though.

[insane_alien]

matbe something will pop up from quantum mechanics. its like a whole scifi world down at that scale.