Improving teleportation fidelity in structured reservoirs

TL;DR

This paper investigates how different structured reservoirs influence quantum teleportation fidelity, revealing that non-Markovian memory effects can enhance teleportation quality in open quantum systems.

Contribution

It demonstrates the impact of reservoir structures on teleportation fidelity and identifies non-Markovian effects as a means to improve quantum communication.

Findings

Reservoir structure significantly affects teleportation fidelity.

Non-Markovian memory effects can enhance teleportation quality.

Physical mechanisms behind fidelity improvement are identified.

Abstract

Seeking flexible methods to control quantum teleportation in open systems is an important task of quantum communication. In this paper, we study how the super-Ohmic, Ohmic and sub-Ohmic reservoirs affect teleportation of a general one-qubit state. The results revealed that the structures of the reservoirs play a decisive role on quality of teleportation. Particularly, the fidelity of teleportation may be improved by the strong backaction of the non-Markovian memory effects of the reservoir. The physical mechanism responsible for this improvement are determined.