共 46 条
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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