Canonical Realization of BMS Symmetry. Quadratic Casimir

Abstract

We study the canonical realization of BMS symmetry for a massive scalar field introduced in reference \cite{LM}. We will construct an invariant scalar product for the generalized momenta. As a consequence we will introduce a quadratic Casimir with the supertranslations.

4 pages

References in corpus (4)

• On BMS Invariance of Gravitational Scattering
• BMS supertranslations and Weinberg's soft graviton theorem
• New Symmetries of Massless QED
• A Critique of Pure String Theory: Heterodox Opinions of Diverse Dimensions

Cited by in corpus (8)

• Soft Hair on Black Holes
• The Holographic Nature of Null Infinity
• Massless Scalars and Higher-Spin BMS in Any Dimension
• Canonical Realization of (2+1)-dimensional Bondi-Metzner-Sachs symmetry
• BMS symmetry, soft particles and memory
• 1/c deformations of AdS${}_3$ boundary conditions and the Dym hierarchy
• Non-Relativistic BMS algebra
• BMS in higher space-time dimensions and Non-relativistic BMS