Physics – Mathematical Physics
Scientific paper
2012-01-03
Physics
Mathematical Physics
41 pages, 1 figure, several references added
Scientific paper
This article propounds, in the wake of influential work of Fefferman and Graham about Poincar\'e extensions of conformal structures, a definition of a (Poincar\'e-)Schr\"odinger manifold whose boundary is endowed with a conformal Bargmann structure above a non-relativistic Newton-Cartan spacetime. Examples of such manifolds are worked out in terms of homogeneous spaces of the Schr\"odinger group in any spatial dimension, and their global topology is carefully analyzed. These archetypes of Schr\"odinger manifolds carry a Lorentz structure together with a preferred null Killing vector field; they are shown to admit the Schr\"odinger group as their maximal group of isometries. The relationship to similar objects arising in the non-relativisitc AdS/CFT correspondence is discussed and clarified.
Duval Christian
Lazzarini Serge
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