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Non-commutative deformation of Chern-Simons theory V. G. Kupriyanov

By: Kupriyanov, Vladislav GMaterial type: ArticleArticleContent type: Текст Media type: электронный Subject(s): некоммутативные деформации | Черна-Саймонса теорияGenre/Form: статьи в журналах Online resources: Click here to access online In: The European physical journal C Vol. 80, № 1. P. 42 (1-17)Abstract: The problem of the consistent definition of gauge theories living on the non-commutative (NC) spaces with a non-constant NC parameter (x) is discussed. Working in the L∞ formalism we specify the undeformed theory, 3d abelian Chern–Simons, by setting the initial 1 brackets. The deformation is introduced by assigning the star commutator to the 2 bracket. For this initial set up we construct the corresponding L∞ structure which defines both the NC deformation of the abelian gauge transformations and the field equations covariant under these transformations. To compensate the violation of the Leibniz rule one needs the higher brackets which are proportional to the derivatives of . Proceeding in the slowly varying field approximation when the star commutator is approximated by the Poisson bracket we derive the recurrence relations for the definition of these brackets for arbitrary . For the particular case of su(2)-like NC space we obtain an explicit all orders formulas for both NC gauge transformations andNCdeformation ofChern–Simons equations. The latter are non-Lagrangian and are satisfied if the NC field strength vanishes everywhere.
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Библиогр.: 29 назв.

The problem of the consistent definition of gauge
theories living on the non-commutative (NC) spaces with
a non-constant NC parameter (x) is discussed. Working
in the L∞ formalism we specify the undeformed theory, 3d
abelian Chern–Simons, by setting the initial 1 brackets. The
deformation is introduced by assigning the star commutator
to the 2 bracket. For this initial set up we construct the corresponding
L∞ structure which defines both the NC deformation
of the abelian gauge transformations and the field equations
covariant under these transformations. To compensate
the violation of the Leibniz rule one needs the higher brackets
which are proportional to the derivatives of . Proceeding in
the slowly varying field approximation when the star commutator
is approximated by the Poisson bracket we derive the
recurrence relations for the definition of these brackets for
arbitrary . For the particular case of su(2)-like NC space
we obtain an explicit all orders formulas for both NC gauge
transformations andNCdeformation ofChern–Simons equations.
The latter are non-Lagrangian and are satisfied if the
NC field strength vanishes everywhere.

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