The conformal BMS group

@article{Haco2017TheCB,
  title={The conformal BMS group},
  author={Sasha J. Haco and Stephen William Hawking and Malcolm Perry and Jacob L. Bourjaily},
  journal={Journal of High Energy Physics},
  year={2017},
  volume={2017},
  pages={1-14}
}
A bstractWe describe the conformal symmetries of asymptotically flat spacetime. These represent an extension of the BMS group that we call the conformal BMS group. Its general features are discussed. 
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References

SHOWING 1-10 OF 39 REFERENCES
Conformal Carroll groups and BMS symmetry
The Bondi–Metzner–Sachs group is shown to be the conformal extension of Levy-Leblond's 'Carroll' group. Further extension to the Newman–Unti group is also discussed in the Carroll framework.
Asymptotic symmetry algebra of conformal gravity
We compute asymptotic symmetry algebras of conformal gravity. Due to more general boundary conditions allowed in conformal gravity in comparison to those in Einstein gravity, we can classify the
Symmetries of asymptotically flat four-dimensional spacetimes at null infinity revisited.
It is shown that the symmetry algebra of asymptotically flat spacetimes at null infinity in 4 dimensions should be taken as the semidirect sum of supertranslations with infinitesimal local conformal
BMS charge algebra
A bstractThe surface charges associated with the symmetries of asymptotically flat four dimensional spacetimes at null infinity are constructed. They realize the symmetry algebra in general only up
Semiclassical Virasoro Symmetry of the Quantum Gravity S-Matrix
It is shown that the tree-level S-matrix for quantum gravity in four-dimensional Minkowski space has a Virasoro symmetry which acts on the conformal sphere at null infinity. ar X iv :1 40 6. 33 12 v1
Aspects of the BMS/CFT correspondence
After a review of symmetries and classical solutions involved in the AdS3/CFT2 correspondence, we apply a similar analysis to asymptotically flat spacetimes at null infinity in 3 and 4 dimensions. In
Supertranslations call for superrotations
We review recent results on symmetries of asymptotically flat spacetimes at null infinity. In higher dimensions, the symmetry algebra realizes the Poincar\'e algebra. In three and four dimensions,
Asymptotic flatness at null infinity in arbitrary dimensions
We define the asymptotic flatness and discuss asymptotic symmetry at null infinity in arbitrary dimensions using the Bondi coordinates. To define the asymptotic flatness, we solve the Einstein
Conformal Carroll groups
Conformal extensions of Levy–Leblondʼs Carroll group, based on geometric properties analogous to those of Newton–Cartan space-time are proposed. The extensions are labeled by an integer k. This
...
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