Black hole complementarity and firewall in two dimensions

TL;DR

This paper investigates black hole complementarity and the firewall paradox within the exactly solvable two-dimensional RST model, revealing conditions under which information duplication can occur and how firewalls can address this issue.

Contribution

It demonstrates that information duplication can occur without many scalar fields and explores the role of firewalls outside the event horizon in the RST model.

Findings

Information duplication is observable without many scalar fields.

Introducing a firewall outside the horizon can prevent information duplication.

The study provides insights into black hole information paradox in two dimensions.

Abstract

In connection with black hole complementarity, we study the possibility of the duplication of information in the RST model which is an exactly soluble quantized model in two dimensions. We find that the duplication of information can be observed without resort to assuming an excessively large number of scalar fields. If we introduce a firewall, then we can circumvent this problem; however, the firewall should be outside the event horizon.