Structural Aspects Of Gravitational Dynamics And The Emergent Perspective Of Gravity

Abstract

I describe several conceptual aspects of a particular paradigm which treats the field equations of gravity as emergent. These aspects are related to the features of classical gravitational theories which defy explanation within the conventional perspective. The alternative interpretation throws light on these features and could provide better insights into possible description of quantum structure of spacetime. This review complements the discussion in arXiv:1207.0505, which describes space itself as emergent in the cosmological context.

Updated version of talks given at: (a) Sixth International School on Field Theory and Gravitation - 2012, Petropolis, Brazil; (b) Colloquium at Institute of Astrophysics, Paris, 2012 and (c) Discussion meeting on String Theory, International Centre for Theoretical Sciences, Bangalore, 2012

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