A model of quantum spacetime
arXiv:2207.01005 · doi:10.1116/5.0107210
Abstract
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.
arXiv commentFinal version accepted for publication on AVS Quantum Science
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