A model of quantum spacetime

被引：4
作者：
Favalli, T. [1 ,2 ,3 ]
Smerzi, A. [1 ,2 ]
机构：
[1] INO CNR, QSTAR, Largo Enrico Fermi 2, Florence, Italy
[2] LENS, Largo Enrico Fermi 2, Florence, Italy
[3] Univ Napoli Federico II, Via Cinthia 21, Naples, Italy
来源：
AVS QUANTUM SCIENCE | 2022年 / 4卷 / 04期
基金：
欧盟地平线“2020”;
关键词：
REFERENCE FRAMES; TIME; SYMMETRY; DYNAMICS; CLOCKS; RULES;
D O I：
10.1116/5.0107210
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider a global quantum system (the "Universe") satisfying a double constraint, both on total energy and total momentum. Generalizing the Page and Wootters quantum clock formalism, we provide a model of 3 + 1 dimensional, non-relativistic, quantum spacetime emerging from entanglement among different subsystems in a globally "timeless" and "positionless" Universe.
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页数：20
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