A quantum circuit interpretation of evaporating black hole geometry

TL;DR

This paper offers a quantum circuit perspective on evaporating black holes, linking the formation of islands in the radiation to transitions from two-sided to one-sided black holes, enhancing understanding of black hole information dynamics.

Contribution

It introduces a quantum circuit interpretation of black hole evaporation, connecting island formation to black hole transitions and providing a new conceptual framework.

Findings

Island formation occurs after Page time.

Transitions from two-sided to one-sided black holes explain interior access.

Quantum circuit analogy clarifies black hole information flow.

Abstract

We give a quantum circuit interpretation of evaporating black hole geometry. We make an analogy between the appearance of island for evaporating black hole and the transition from two-sided to one-sided black hole in the familiar example of perturbed thermofield double. If Alice perturbs thermofield double and waits for scrambling time, she will have a one-sided black hole with interior of her own. We argue that by similar mechanism the radiation gets access to the interior (island forms) after Page time. The growth of the island happens as a result of the constant transitions from two-sided to one-sided black holes.