The entangling side of the Unruh-Hawking effect

TL;DR

This paper demonstrates that the Unruh effect can generate entanglement between inertial and accelerated observers, challenging previous beliefs and suggesting new experimental avenues for observing Unruh and Hawking effects.

Contribution

It reveals that the Unruh effect can create entanglement depending on the initial inertial state, overturning the notion that it only destroys entanglement.

Findings

Unruh effect can produce net entanglement between observers.

Entanglement creation depends on the initial inertial state.

Provides a potential new method for experimental detection of Unruh and Hawking effects.

Abstract

We show that the Unruh effect can create net quantum entanglement between inertial and accelerated observers depending on the choice of the inertial state. This striking result banishes the extended belief that the Unruh effect can only destroy entanglement and furthermore provides a new and unexpected source for finding experimental evidence of the Unruh and Hawking effects.