BMS/GCA redux: towards flatspace holography from non-relativistic symmetries View Full Text


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Article Info

DATE

2012-10

AUTHORS

Arjun Bagchi, Reza Fareghbal

ABSTRACT

The asymptotic group of symmetries at null infinity of flat spacetimes in three and four dimensions is the infinite dimensional Bondi-Metzner-Sachs (BMS) group. This has recently been shown to be isomorphic to non-relativistic conformal algebras in one lower dimension, the Galilean Conformal Algebra (GCA) in 2d and a closely related non-relativistic algebra in 3d [1, 2]. We provide a better understanding of this surprising connection by providing a spacetime interpretation in terms of a novel contraction. The 2d GCA was previously obtained from a linear combination of two copies of the Virasoro algebra. We consider a representation obtained from a different linear combination of the Virasoros, which is relevant to the relation with the BMS algebra in three dimensions. This is realised by a new space-time contraction of the parent algebra. We show that this representation has interesting correlation functions. We discuss implications for the BMS/GCA correspondence and show that the flat space limit actually induces precisely this contraction on the boundary conformal field theory. We also discuss aspects of asymptotic symmetries and the consequences of this contraction in higher dimensions. More... »

PAGES

92

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/jhep10(2012)092

DOI

http://dx.doi.org/10.1007/jhep10(2012)092

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1015935388


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Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/jhep10(2012)092'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/jhep10(2012)092'


 

This table displays all metadata directly associated to this object as RDF triples.

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