Finite temperature reservoir engineering and entanglement dynamics

TL;DR

This paper introduces experimental methods for engineering finite temperature reservoirs, enabling the study of temperature-dependent entanglement phenomena and controlled decoherence in quantum systems.

Contribution

It generalizes quantum state engineering to mixed states using engineered reservoirs at arbitrary temperatures, feasible with current technology.

Findings

Observation of thermal entanglement increase with temperature

Analysis of finite time disentanglement and revival at different temperatures

Potential applications in quantum thermodynamics and entanglement control

Abstract

We propose experimental methods to engineer reservoirs at arbitrary temperature which are feasible with current technology. Our results generalize to mixed states the possibility of quantum state engineering through controlled decoherence. Finite temperature engineered reservoirs can lead to the experimental observation of thermal entanglement --the appearance and increase of entanglement with temperature-- to the study of the dependence of finite time disentanglement and revival with temperature, quantum thermodynamical effects, among many other applications, enlarging the comprehension of temperature dependent entanglement properties.