Entanglement of two two-levels atoms mediated by an optical black hole

TL;DR

This paper investigates how two two-level atoms can become entangled through an optical black hole's influence, revealing the potential for black hole-mediated quantum entanglement in electromagnetic fields.

Contribution

It introduces a model for atom-atom entanglement mediated by an optical black hole, analyzing the dynamics in weak coupling regimes for different resonance conditions.

Findings

Atoms can become entangled via the optical black hole.

Entanglement occurs in both resonance and non-resonance cases.

The negativity between atoms varies over time depending on conditions.

Abstract

We consider the dynamics of a system consisting of two two-level atoms interacting with the electromagnetic field near an optical black hole. We obtain the reduced density operator of the two-atom system in the weak coupling regime for the case that one atom is in the excited state and the other in the ground state. The time evolution of the negativity between the atoms is discussed for two non-resonance and resonance cases. In both cases, we show that the two atoms can become entangled due to the indirect interaction mediated through the optical black hole.