Reverse Engineering with Quantum Noise

TL;DR

This paper demonstrates that certain quantum noise can be harnessed to preserve and recover quantum entanglement over time, offering a novel approach to quantum control.

Contribution

It introduces a method where quantum noise acts as a reservoir to maintain and recover entanglement, contrasting with traditional views of noise as detrimental.

Findings

Quantum noise can preserve joint coherence in entangled atoms.

Quantum noise can be used to hide and recover quantum entanglement.

Long-time control of entanglement is achievable through engineered noise.

Abstract

We show that specific quantum noise, acting as an open-system reservoir for non-locally entangled atoms, can serve to preserve rather than degrade joint coherence. This creates a new type of long-time control over hiding and recovery of quantum entanglement.