
TL;DR
This paper models quantum space-time as a network of entangled qubits at Planck scale, revealing how quantum fluctuations create wormholes that connect different slices of the universe, illustrating space-time entanglement.
Contribution
It introduces a quantum computational model of space-time using a discrete de Sitter universe with holographic pixels encoding qubits, linking quantum gates to geometric wormholes.
Findings
Quantum fluctuations induce tiny wormholes connecting space-time slices.
Space-time entanglement corresponds to quantum links in the network.
Quantum gates model the entanglement and measurement processes.
Abstract
We illustrate the entanglement mechanism of quantum space-time itself. We consider a discrete, quantum version of de Sitter Universe with a Planck time-foliation, to which is applied the quantum version of the holographic principle (a Planckian pixel encodes one qubit rather than a bit). This results in a quantum network, where the time steps label the nodes. The quantum fluctuations of the vacuum are the connecting links of the quantum network, while the total number of pixels (qubits) of a spatial slice are the outgoing links from a node n. At each node n there is a couple of quantum gates, the Hadamard gate (H) and the controlled-not (CNOT) gate, plus a projector P. The Hadamard gate transforms virtual states (bits) into qubits, the projector P measures a qubit at the antecedent node, giving rise to a new bit, and the CNOT gate entangles a qubit at node n with the new bit at node…
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