English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In this work we construct a novel associative algebra and use it to define atheory of higher-spin gravity in (2+1)-dimensional asymptotically flatspacetimes. Our construction is based on a quotient of the universal envelopingalgebra (UEA) of $\mathfrak{isl}(2,\mathbb{R})$ with respect to the idealgenerated by its Casimir elements, the mass squared $\mathcal{M}^2$ and thethree-dimensional analogue of the square of the Pauli-Lubanski vector$\mathcal{S}$ and propose to call the resulting associative algebra$\mathfrak{ihs}(\mathcal{M}^2,\mathcal{S})$. We provide a definition of itsgenerators and even though we are not yet able to provide the complete set ofmultiplication rules of this algebra our analysis allows us to study manyinteresting and relevant sub-structures of$\mathfrak{ihs}(\mathcal{M}^2,\mathcal{S})$. We then show how to consistentlycouple a scalar field to an $\mathfrak{ihs}(\mathcal{M}^2,\mathcal{S})$higher-spin gauge theory.

Scalar Fields in 3D Asymptotically Flat Higher-Spin Gravity