Black hole as fireplace: limited communications across the horizon

TL;DR

This paper proposes a novel model combining complex metrics and Bose-Einstein condensate black holes to illustrate the firewall concept, suggesting limited communication across the horizon due to graviton fluctuations.

Contribution

It introduces a new visualization of the firewall as an imaginary space with a micro-transparent horizon based on BEC black holes and complex metrics.

Findings

Inner space behind the horizon is an imaginary space.

Graviton fluctuations lead to a micro-transparent horizon.

Limited communication is possible across the horizon.

Abstract

An insightful viewpoint was proposed by Susskind about AMPS firewall: the region behind the firewall does not exist and the firewall is an extension of the singularity. In this work, we provided a possible picture of this idea by combining Newman's complex metric and Dvali-Gomez BEC black holes, which are Bose-Einstein condensates of N gravitons. The inner space behind the horizon is a realized imaginary space encrusted by the real space outside the horizon. In this way, the singularity extents to the horizon to make a firewall for the infalling observer. Some gravitons escape during the fluctuation of the BEC black hole, resulting in a micro-transparent horizon which makes the firewall exposes slightly to an observer outside the horizon. This picture allows limited communications across the horizon.