Very-late-time probing of ER-bridge growth by higher-party multi-entropies

Determine whether multi-entropies involving a general number of parties, without additional probes such as holographic complexity, can detect Einstein–Rosen bridge growth at very late times.

Background

The analysis is restricted to tri-partite entanglement and establishes that genuine tri-partite entropy can continue to grow after ordinary entanglement entropies and mutual informations have saturated. The authors suggest that partitions into more than three parties could probe a broader regime of wormhole growth, but they explicitly leave unresolved whether multi-entropies alone remain capable of tracking the bridge at very late times, where holographic complexity is expected to be effective.