Introduction to causal sets and their phenomenology. (English) Zbl 1273.83062
Summary: In this introduction to the causal set approach to the problem of quantum gravity, I emphasise that causal sets are both fundamentally discrete and Lorentz invariant, which makes them nonlocal. I focus on opportunities for phenomenology arising from and stimulated by causal sets.
MSC:
| 83C45 | Quantization of the gravitational field |
| 83C05 | Einstein’s equations (general structure, canonical formalism, Cauchy problems) |
| 83C10 | Equations of motion in general relativity and gravitational theory |
| 83C27 | Lattice gravity, Regge calculus and other discrete methods in general relativity and gravitational theory |
| 06B35 | Continuous lattices and posets, applications |
| 03E04 | Ordered sets and their cofinalities; pcf theory |
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