Causal Sets: Quantum gravity from a fundamentally discrete spacetime

Details Causal Sets: Quantum gravity from a fundamentally discrete spacetime Causal Sets: Quantum gravity from a fundamentally discrete spacetime

2010-01-22

arxiv.org/abs/1001.4041v1

J. Phys.: Conf. Ser. 222, 012053 (2010)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, review of causal sets based on talk given at the 1st MCCQG conference

Scientific paper

10.1088/1742-6596/222/1/012053

In order to construct a quantum theory of gravity, we may have to abandon certain assumptions we were making. In particular, the concept of spacetime as a continuum substratum is questioned. Causal Sets is an attempt to construct a quantum theory of gravity starting with a fundamentally discrete spacetime. In this contribution we review the whole approach, focusing on some recent developments in the kinematics and dynamics of the approach.

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