Torsional newton-cartan geometry and lifshitz holography

MH Christensen, J Hartong, NA Obers, B Rollier - Physical Review D, 2014 - APS
Physical Review D, 2014APS
We obtain the Lifshitz UV completion in a specific model for z= 2 Lifshitz geometries. We use
a vielbein formalism which enables identification of all the sources as leading components
of well-chosen bulk fields. We show that the geometry induced from the bulk onto the
boundary is a novel extension of Newton-Cartan geometry with a specific torsion tensor. We
explicitly compute all the vacuum expectation values (VEVs) including the boundary stress-
energy tensor and their Ward identities. After using local symmetries or Ward identities the …
We obtain the Lifshitz UV completion in a specific model for Lifshitz geometries. We use a vielbein formalism which enables identification of all the sources as leading components of well-chosen bulk fields. We show that the geometry induced from the bulk onto the boundary is a novel extension of Newton-Cartan geometry with a specific torsion tensor. We explicitly compute all the vacuum expectation values (VEVs) including the boundary stress-energy tensor and their Ward identities. After using local symmetries or Ward identities the system exhibits 6+6 sources and VEVs. The Fefferman-Graham expansion exhibits, however, an additional free function which is related to an irrelevant operator whose source has been turned off. We show that this is related to a second UV completion.
American Physical Society
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