Quantum Spacetime on a Quantum Simulator

Understand

We experimentally simulate the spin networks -- a fundamental description of quantum spacetime at the Planck level.

• We achieve this by simulating quantum tetrahedra and their interactions.
• The tensor product of these quantum tetrahedra comprises spin networks.
• In this initial attempt to study quantum spacetime by quantum information processing, on a four-qubit nuclear magnetic resonance quantum simulator, we simulate the basic module -- comprising five quantum tetrahedra -- of the interactions of quantum spacetime.