Tunneling of quantum geometries in spinfoams

被引:2
作者
Dona, Pietro [1 ]
Haggard, Hal M. [2 ]
Rovelli, Carlo [1 ,3 ,4 ,5 ,6 ]
Vidotto, Francesca [4 ,5 ,7 ]
机构
[1] Univ Toulon & Var, Aix Marseille Univ, CNRS, CPT, Marseille, France
[2] Bard Coll, Psychol Program, 30 Campus Rd, Annandale On Hudson, NY 12504 USA
[3] Ctr Space Time & Quantum, F-13288 Marseille, France
[4] Western Univ, Dept Philosophy, London, ON N6A 3K7, Canada
[5] Western Univ, Rotman Inst, London, ON N6A 3K7, Canada
[6] Perimeter Inst, 31 Caroline St North, Waterloo, ON N2L 2Y5, Canada
[7] Western Univ, Dept Phys & Astron, London, ON N6A 3K7, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1103/PhysRevD.109.106016
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Quantum gravitational tunneling effects are expected to give rise to a number of interesting observable phenomena, including, in particular, the evolution of black holes at the end of their existence or the emergence of the early universe from a quantum phase. Covariant loop quantum gravity provides a framework to study these phenomena, yet a precise identification of tunneling processes is still not known. Motivated by this question, we consider a related, simpler case, that of Ponzano-Regge amplitudes: we find a detailed analogy of a class of simple transition amplitudes with tunneling processes in nonrelativistic quantum mechanics.
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页数:7
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