A model of quantum spacetime

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.

Final version accepted for publication on AVS Quantum Science

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Cited by in corpus (6)

• Spacetime quantum and classical mechanics with dynamical foliation
• Nonrelativistic spatiotemporal quantum reference frames
• Quantum Time and the Time-Dilation induced Interaction Transfer mechanism
• Time dilation of quantum clocks in a relativistic gravitational potential
• Spacetime quantum mechanics for bosonic and fermionic systems
• Unveiling quantum complementarity tradeoffs in relativistic scenarios