In quantum gravity, summing is refining
نویسندگان
چکیده
منابع مشابه
In quantum gravity, summing is refining
In perturbative QED, the approximation is improved by summing more Feynman graphs; in nonperturbative QCD, by refining the lattice. Here we observe that in quantum gravity the two procedures may well be the same. We outline the combinatorial structure of spinfoam quantum gravity, define the continuum limit, and show that under general conditions refining foams is the same as summing over them. ...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2012
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/29/5/055004