Deriving the equations of motion in f(T) gravity

[birdhen]

Hi there,

I originally posted this in the SR, GR section so sorry for the re-post.

Can anyone point me in the direction of any papers that explicitly derive the equations of motion in f(T) gravity. I have seen the wikipedia derivation in f(R) gravity but can't find anything for f(T) where the action is varied wrt to the vierbein.

Many thanks

 

[sheaf]

f(T) means teleparallel gravity ?

If so, http://www.ift.unesp.br/gcg/tele.pdf" seems to have some expository material including the Lagrangian and variational prinicple. I haven't read it myself, and it's not a field with which I'm familiar, but maybe it helps ...?

 

[birdhen]

HI there,
Thank you for your reply, yes, f(T) gravity is an extension of teleparallel gravity.

PS I can't get your link to work, it just comes up blank.

Cheers

 

[birdhen]

Hi there,

I have moved to another computer and can open it fine now. Thanks very much it is very helpful!