(1+1)D Calculation provides evidence that quantum entanglement survives a firewall

Abstract

We analyze how pre-existing entanglement between two Unruh-DeWitt particle detectors evolves when one of the detectors falls through a Rindler firewall in (1+1)-dimensional Minkowski space. The firewall effect is minor and does not wash out the detector-detector entanglement, in some regimes even preserving the entanglement better than Minkowski vacuum. The absence of cataclysmic events should continue to hold for young black hole firewalls. A firewall's prospective ability to resolve the information paradox must hence hinge on its detailed gravitational structure, presently poorly understood.

arXiv comment5 pages, 3 figures. RevTeX 4.1. v2: Updated to match published version. Added references and clarifications, including new title

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