Gravity - does General Relativities warped space model apply in String Theory?

[AluminumStudios]

Einstein's General Relativity models gravity as a warping of space-time. It's like having a stretched out rubber sheed (space) and sitting a bowling ball on it (the Sun.) It bends the sheet so that other things fall into it (like the Earth orbiting the Sun.)

String theory if I understand enough, seeks to explain forces though an exchange of particles. For example, the particle of the electro-magnatic force is the well known Photon. I believe one of the particles of the strong force is called the Boson? Well anyway, that would leave room for a gravity particle - the yet undiscovered graviton.

So, in String Theory if you talk about gravity as the exchange of Gravitons between mass, does that mean that General Relativity's idea of mass warping space doesn't apply?

I'm in the process of reading Elegant Universe by Brain Greene and in the chapter on quantum geomentry (of the extra Calabi-Yau shaped spacial dimentions) it made referance to the possiblity of the gravitation of black holes warping space-time fabric so much that it tears. I'm confused on how String Theory views mass and it's effect on space now ...

 

[DrPizza]

carrier particles for forces is part of the standard model - a level above string theory.

 

[GRIdpOOL]

String theory falls short with large objects only because the connection between particles and gravity hasn't been entirely made. You are correct in assuming the existence of other "forces", but shouldn't be limited in thinking there are only gravitons to deal with. I wouldn't be surprised if there are 4 more common forces and particles that can be applied to string theory in order to achieve unification.

 

[silverpig]

Originally posted by: DrPizza
carrier particles for forces is part of the standard model - a level above string theory.

A level above string theory?

String theory is not TOO TOO much different from the standard model. It can't really be because with the success of the standard model, string theory must fully replicate it and also add to it in order for it to be worth something.

 

[harrkev]

If you figure this out, invite me to the ceremony where they give you the nobel prize. 😉

What you ask are questions which are, right now, witthout answers. Getting quantum-anything (and string theory is an extention of quantum theory) to play nicely with relativity has never been done.

 

[imported_jb]

my comments:
i hate the "bowling ball and sheet" image. isn't a pinched 3D grid easier to visualize?
and i might hate gravitons too. there is plenty of space between the protons and electrons. i'm almost willing to bet that as mass increases, this space becomes smaller/more compressed. and from there, some kind of pressure is exerted.

not that that explains how string theory explains "mass on space".