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Non-Abelian gauge theories invariant under diffeomorphisms

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arxiv 1904.12317 v2 pith:LLFFOYKI submitted 2019-04-28 hep-th gr-qc

Non-Abelian gauge theories invariant under diffeomorphisms

classification hep-th gr-qc
keywords degreesfreedomgaugenumbertheoriesactioncanonicalinvariant
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We discuss diffeomorphism and gauge invariant theories in three dimensions motivated by the fact that some models of interest do not have a suitable action description yet. The construction is based on a canonical representation of symmetry generators and on building of the corresponding canonical action. We obtain a class of theories whose number of local degrees of freedom depends on the dimension of the gauge group and the number of the independent constraints. By choosing the latter, we focus on three special cases, starting with a theory with maximal local number of degrees of freedom and finishing with a theory with zero degrees of freedom (Chern-Simons).

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