On-shell versus off-shell equivalence in 3D gravity
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Bergshoeff, EA https://orcid.org/0000-0003-1937-6537
Merbis, W
Townsend, PK https://orcid.org/0000-0003-0311-9448
Abstract
A given field theory action determines a set of field equations but other actions may yield equivalent field equations; if so they are on-shell equivalent. They may also be off-shell equivalent, being related by the elimination of auxiliary fields or by local field redefinitions, but this is not guaranteed, as we demonstrate by consideration of the linearized limit of 3D massive gravity models. Failure to appreciate this subtlety has led to incorrect conclusions in recent studies of the ``Minimal Massive Gravity'' model.
Description
Keywords
massive gravity, three-dimensional gravity, asymptotic charges
Journal Title
Classical and Quantum Gravity
Conference Name
Journal ISSN
0264-9381
1361-6382
1361-6382
Volume Title
36
Publisher
IOP Publishing
Publisher DOI
Sponsorship
Science and Technology Facilities Council (ST/P000681/1)