nLab
quantum integrand

Contents

Idea

The bosonic action functional of a quantum field theory with fermions is often not naturally given as a function on the space of field configurations, but a section of a line bundle. (See fermionic path integral). In the absence of a quantum anomaly this line bundle is trivializable. Any choice of trivialization makes the action functional an actual function. This choice is called sometimes the setting of the quantum integrand .

References

The quantum integrand of 11-dimensional supergravity is discussed in

Created on May 10, 2011 13:45:17 by Urs Schreiber (131.251.141.156)