Traversable Wormholes via a Double Trace Deformation

TL;DR

This paper demonstrates how a double trace deformation in a holographic setup creates a traversable wormhole by inducing negative energy, linking quantum teleportation and ER=EPR without violating causality.

Contribution

It introduces a method to make eternal black hole bridges traversable using a double trace deformation, connecting quantum teleportation with holography.

Findings

Negative null energy enables traversability of the wormhole.

The setup preserves causality despite negative energy.

Implications for energy and entropy in the dual CFT.

Abstract

After turning on an interaction that couples the two boundaries of an eternal BTZ black hole, we find a quantum matter stress tensor with negative average null energy, whose gravitational backreaction renders the Einstein-Rosen bridge traversable. Such a traversable wormhole has an interesting interpretation in the context of ER=EPR, which we suggest might be related to quantum teleportation. However, it cannot be used to violate causality. We also discuss the implications for the energy and holographic entropy in the dual CFT description.