quantum integrand

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* .

The quantum integrand of 11-dimensional supergravity is discussed in

- Dan Freed, Greg Moore,
*Setting the quantum integrand of M-theory*, Communications in mathematical physics, Volume 263, Number 1, 89-132, DOI: 10.1007/s00220-005-1482-7 (arXiv:hep-th/0409135)

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