This rerecorded talk was originally given at the spring meeting of the German Physical Society on February 29, 2016. It is based on this paper, where the algebra of a set of gravity observables constructed using a coordinate system specified by geodesics is computed. My interest in this question, next to general considerations in quantum gravity, comes from the AdS/CFT correspondence, where this construction has been used in the construction of the bulk / boundary dictionary. I plan to comment a little more on the content of the paper in the near future, highlighting some in my point of view important conceptual conclusions on the structure of general relativistic observable algebras.

## Tuesday, March 8, 2016

### The algebra of observables in Gaußian normal space-(time) coordinates

This rerecorded talk was originally given at the spring meeting of the German Physical Society on February 29, 2016. It is based on this paper, where the algebra of a set of gravity observables constructed using a coordinate system specified by geodesics is computed. My interest in this question, next to general considerations in quantum gravity, comes from the AdS/CFT correspondence, where this construction has been used in the construction of the bulk / boundary dictionary. I plan to comment a little more on the content of the paper in the near future, highlighting some in my point of view important conceptual conclusions on the structure of general relativistic observable algebras.

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