A hidden symmetry in quantum gravity
| Autor: | Lars Brink, Sucheta Majumdar, Sudarshan Ananth |
|---|---|
| Přispěvatelé: | School of Physical and Mathematical Sciences |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
High Energy Physics - Theory
Computer Science::Machine Learning Nuclear and High Energy Physics Field (physics) FOS: Physical sciences Science::Physics [DRNTU] Symmetry group Computer Science::Digital Libraries 01 natural sciences General Relativity and Quantum Cosmology Statistics::Machine Learning Theoretical physics 0103 physical sciences lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010306 general physics Physics 010308 nuclear & particles physics Supergravity Space-Time Symmetries Equations of motion Helicity Action (physics) Symmetry (physics) High Energy Physics - Theory (hep-th) Computer Science::Mathematical Software Quantum gravity lcsh:QC770-798 Classical Theories of Gravity Supergravity Models |
| Zdroj: | Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-13 (2018) Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| Popis: | The action integral contains more information than the equations of motion. We have previously shown that there are signs of an extended exceptional symmetry for N=8 supergravity in four dimensions. The symmetry is such that the fields used in the Lagrangian are not representations of the symmetry. Instead one has to add representations to obtain a representation of the extended symmetry group. In this paper we discuss an extended symmetry in four-dimensional gravity which is the Ehlers symmetry in three dimensions. It cannot be spanned by the helicity states of four-dimensional gravity but it can be realised once we treat the helicity states just as field variables of the functional integral, which can be changed like variables in any integral. We also explain how this symmetry is inherent to formulations of N=8 supergravity in four dimensions through a truncation in the field space to pure gravity. 13 pages |
| Databáze: | OpenAIRE |
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