Curvature in spinfoams
Curvature in spinfoams
复制标题
纺丝泡沫的曲率
DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
C. Perini
中科院分区:
文献类型:
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作者:
Elena Magliaro;C. Perini
We consider spinfoam quantum gravity. We show in a simple case that the amplitude projects over a nontrivial (curved) classical geometry. This suggests that, at least for spinfoams without bubbles and for large values of the boundary spins, the amplitude takes the form of a path integral over Regge metrics, thus enforcing discrete Einstein equations in the classical limit. The result relies crucially on a new interpretation of the semiclassical limit for the amplitudes truncated to a fixed 2-complex.
影响因子:
3.5
作者:
J. Barrett;R. J. Dowdall;W. Fairbairn;F. Hellmann;R. Pereira
通讯作者:
J. Barrett;R. J. Dowdall;W. Fairbairn;F. Hellmann;R. Pereira