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Relation between polymer and Fock excitations
被引:60
作者:
Ashtekar, A
Lewandowski, J
机构:
[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[2] Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland
[3] Albert Einstein Inst, Max Planck Inst Gravitat Phys, D-14476 Golm, Germany
基金:
美国国家科学基金会;
关键词:
D O I:
10.1088/0264-9381/18/18/102
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
To bridge the gap between background-independent, non-perturbative quantum gravity and low-energy physics described by perturbative field theory in Minkowski spacetime, Minkowskian Fock states are located, analysed and used in the background-independent framework. This approach to the analysis of semiclassical issues is motivated by the recent results of Varadarajan (Varadarajan M and Zapata J A 2000 Class. Quantum Grav. 17 4085-109). As in that work, we use the simpler U(l) example to illustrate our constructions but, in contrast to that work, we formulate the theory in such a way that it can be extended to full general relativity.
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页码:L117 / L127
页数:11
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