Raiders of the lost spacetime
نویسندگان
چکیده
Spacetime as we know and love it is lost in most approaches to quantum gravity. For many of these approaches, as inchoate and incomplete as they may be, one of the main challenges is to relate what they take to be the fundamental non-spatiotemporal structure of the world back to the classical spacetime of GR. The present essay investigates how spacetime is lost and how it may be regained in one major approach to quantum gravity, loop quantum gravity.
منابع مشابه
Raiders of the Lost AdS
We demonstrate that under certain conditions a theory of conformal quantum mechanics will exhibit the symmetries of two halfVirasoro algebras. We further demonstrate the conditions under which these algebras combine to form a single Virasoro algebra, and comment on the connection between this result and the AdS2/CFT1 correspondence. e-mail address:[email protected]
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