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Free keywords:
General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Theory, hep-th
Abstract:
We give a critical overview of various attempts to describe gravity as an
emergent phenomenon, starting from examples of condensed matter physics, to
arrive to more sophisticated pregeometric models. The common line of thought is
to view the graviton as a composite particle/collective mode. However, we will
describe many different ways in which this idea is realized in practice.