- #1

tom.stoer

Science Advisor

- 5,766

- 160

## Main Question or Discussion Point

Can anybody explain to me what string theorists mean when they are talking about

I understand this concept in the context of general relativity and loop quantum gravity; there it means

Thanks

Thomas

*background independence in string theory*?I understand this concept in the context of general relativity and loop quantum gravity; there it means

*invariance with respect to active, local diffeomosphisms*. In string theory the AdS/CFT conjecture is mentioned, but I do not understand, how this guarantuees background independence. Both the string and the conformal field theory are put on top of a certain background.Thanks

Thomas