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arXiv · 1811.05360

$\kappa$-deformed BMS symmetry

A. Borowiec·L. Brocki·J. Kowalski-Glikman·J. Unger
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Abstract

We present the quantum $\kappa$-deformation of BMS symmetry, by generalizing the lightlike $\kappa$-Poincar\'e Hopf algebra. On the technical level, our analysis relies on the fact that the lightlike $\kappa$-deformation of Poincar\'e algebra is given by a twist and the lightlike deformation of any algebra containing Poincar\'e as a subalgebra can be done with the help of the same twisting element. We briefly comment on the physical relevance of the obtained $\kappa$-BMS Hopf algebra as a possible asymptotic symmetry of quantum gravity.

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A. Borowiec, L. Brocki, J. Kowalski-Glikman, J. Unger. 2018-11-13. $\kappa$-deformed BMS symmetry. https://doi.org/10.1016/j.physletb.2019.01.063

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