Diagnosing collisions in the interior of a wormhole

Understand

Two distant black holes can be connected in the interior through a wormhole.

• Such a wormhole has been interpreted as an entangled state shared between two exterior regions.
• If Alice and Bob send signals into each of the black holes, they can meet in the interior.
• In this letter, we interpret this meeting in terms of the quantum circuit that prepares the entangled state: Alice and Bob sending signals creates growing perturbations in the circuit, whose overlap represents their meeting inside the wormhole.