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Volume 612 Issue 7938, 1 December 2022

Holographic wormhole

One challenge that stems from the fundamental incompatibility between general relativity and quantum mechanics is that there is no consensus on a theory of quantum gravity. A way to potentially overcome this is through the holographic principle, which says that a system involving gravity can be described by a lower-dimensional quantum system. In this week’s issue, Maria Spiropulu and her colleagues replicate the dynamics of a traversable holographic wormhole by experimentally realizing the corresponding quantum dynamics in a quantum computer using 9-qubits. This is an early step towards studying theories of quantum gravity in the laboratory. In the same quantum chip, the researchers created two entangled quantum systems. They inserted a qubit into one of them and observed the information emerging from the other exhibiting the expected gravitational properties of the traversable wormhole.

Cover image: inqnet/A. Mueller.

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