TY - GEN
T1 - Local covariance and background independence
AU - Fredenhagen, Klaus
AU - Rejzner, Kasia
PY - 2012
Y1 - 2012
N2 - One of the many conceptual difficulties in the development of quantum gravity is the role of a background geometry for the structure of quantum field theory. To some extent the problem can be solved by the principle of local covariance. The principle of local covariance was originally imposed in order to restrict the renormalization freedom for quantum field theories on generic spacetimes. It turned out that it can also be used to implement the request of background independence. Locally covariant fields then arise as background independent entities.
AB - One of the many conceptual difficulties in the development of quantum gravity is the role of a background geometry for the structure of quantum field theory. To some extent the problem can be solved by the principle of local covariance. The principle of local covariance was originally imposed in order to restrict the renormalization freedom for quantum field theories on generic spacetimes. It turned out that it can also be used to implement the request of background independence. Locally covariant fields then arise as background independent entities.
U2 - 10.1007/978-3-0348-0043-3
DO - 10.1007/978-3-0348-0043-3
M3 - Conference contribution
SN - 978-3-0348-0042-6
SP - 15
EP - 24
BT - Quantum Field Theory and Gravity
A2 - Finster, Felix
A2 - Nardmann, Marc
A2 - Zeidler, Eberhard
A2 - Mueller, Olaf
A2 - Tolksdorf, Juergen
PB - Birkhauser
CY - Basel
ER -