650 research outputs found

    Maxwell Superalgebras and Abelian Semigroup Expansion

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    The Abelian semigroup expansion is a powerful and simple method to derive new Lie algebras from a given one. Recently it was shown that the SS-expansion of so(3,2)\mathfrak{so}\left( 3,2\right) leads us to the Maxwell algebra M\mathcal{M}. In this paper we extend this result to superalgebras, by proving that different choices of abelian semigroups SS lead to interesting D=4D=4 Maxwell Superalgebras. In particular, the minimal Maxwell superalgebra sMs\mathcal{M} and the NN-extended Maxwell superalgebra sM(N)s\mathcal{M}^{\left( N\right) } recently found by the Maurer Cartan expansion procedure, are derived alternatively as an SS-expansion of osp(4∣N)\mathfrak{osp}\left( 4|N\right) . Moreover we show that new minimal Maxwell superalgebras type sMm+2s\mathcal{M}_{m+2} and their NN-extended generalization can be obtained using the SS-expansion procedure.Comment: 31 pages, some clarifications in the abstract,introduction and conclusion, typos corrected, a reference and acknowledgements added, accepted for publication in Nuclear Physics

    N=1 Supergravity and Maxwell superalgebras

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    We present the construction of the D=4D=4 supergravity action from the minimal Maxwell superalgebra sM4s\mathcal{M}_{4}, which can be derived from the osp(4∣1)\mathfrak{osp}\left( 4|1\right) superalgebra by applying the abelian semigroup expansion procedure. We show that N=1N=1, D=4D=4 pure supergravity can be obtained alternatively as the MacDowell-Mansouri like action built from the curvatures of the Maxwell superalgebra sM4s\mathcal{M}_{4}. We extend this result to all minimal Maxwell superalgebras type sMm+2s\mathcal{M}_{m+2}. The invariance under supersymmetry transformations is also analized.Comment: 22 pages, published versio

    Lovelock gravities from Born-Infeld gravity theory

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    We present a Born-Infeld gravity theory based on generalizations of Maxwell symmetries denoted as Cm\mathfrak{C}_{m}. We analyze different configuration limits allowing to recover diverse Lovelock gravity actions in six dimensions. Further, the generalization to higher even dimensions is also considered.Comment: v3, 15 pages, two references added, published versio

    Chern-Simons and Born-Infeld gravity theories and Maxwell algebras type

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    Recently was shown that standard odd and even-dimensional General Relativity can be obtained from a (2n+1)(2n+1)-dimensional Chern-Simons Lagrangian invariant under the B2n+1B_{2n+1} algebra and from a (2n)(2n)-dimensional Born-Infeld Lagrangian invariant under a subalgebra LB2n+1\cal{L}^{B_{2n+1}} respectively. Very Recently, it was shown that the generalized In\"on\"u-Wigner contraction of the generalized AdS-Maxwell algebras provides Maxwell algebras types Mm\cal{M}_{m} which correspond to the so called BmB_{m} Lie algebras. In this article we report on a simple model that suggests a mechanism by which standard odd-dimensional General Relativity may emerge as a weak coupling constant limit of a (2p+1)(2p+1)-dimensional Chern-Simons Lagrangian invariant under the Maxwell algebra type M2m+1\cal{M}_{2m+1}, if and only if m≥pm\geq p. Similarly, we show that standard even-dimensional General Relativity emerges as a weak coupling constant limit of a (2p)(2p)-dimensional Born-Infeld type Lagrangian invariant under a subalgebra LM2m\cal{L}^{\cal{M}_{2m}} of the Maxwell algebra type, if and only if m≥pm\geq p. It is shown that when m<pm<p this is not possible for a (2p+1)(2p+1)-dimensional Chern-Simons Lagrangian invariant under the M2m+1\cal{M}_{2m+1} and for a (2p)(2p)-dimensional Born-Infeld type Lagrangian invariant under LM2m\cal{L}^{\cal{M}_{2m}} algebra.Comment: 30 pages, accepted for publication in Eur.Phys.J.C. arXiv admin note: text overlap with arXiv:1309.006

    Generalized Poincare algebras and Lovelock-Cartan gravity theory

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    We show that the Lagrangian for Lovelock-Cartan gravity theory can be re-formulated as an action which leads to General Relativity in a certain limit. In odd dimensions the Lagrangian leads to a Chern-Simons theory invariant under the generalized Poincar\'{e} algebra B2n+1,\mathfrak{B}_{2n+1}, while in even dimensions the Lagrangian leads to a Born-Infeld theory invariant under a subalgebra of the B2n+1\mathfrak{B}_{2n+1} algebra. It is also shown that torsion may occur explicitly in the Lagrangian leading to new torsional Lagrangians, which are related to the Chern-Pontryagin character for the B2n+1B_{2n+1} group.Comment: v2: 18 pages, minor modification in the title, some clarifications in the abstract, introduction and section 2, section 4 has been rewritten, typos corrected, references added. Accepted for publication in Physic letters
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