κ -deformed BMS symmetry

Borowiec, Andrzej (Institute for Theoretical Physics, University of Wrocław, pl. M. Borna 9, Wrocław, 50-204, Poland) ; Brocki, Lennart (Institute for Theoretical Physics, University of Wrocław, pl. M. Borna 9, Wrocław, 50-204, Poland) ; Kowalski-Glikman, Jerzy  (Institute for Theoretical Physics, University of Wrocław, pl. M. Borna 9, Wrocław, 50-204, Poland) (National Centre for Nuclear Research, Hoża 69, Warsaw, 00-681, Poland) ; Unger, Josua (Institute for Theoretical Physics, University of Wrocław, pl. M. Borna 9, Wrocław, 50-204, Poland)

04 February 2019

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


Published in: Physics letters B 790 (2019) 415-420
Published by: Elsevier
DOI: 10.1016/j.physletb.2019.01.063
License: CC-BY-3.0



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