Non-Gaussian continuous-variable teleportation

TL;DR

This paper investigates the noise characteristics in non-Gaussian continuous-variable teleportation, comparing it to Gaussian cases, and clarifies the superposition nature of the output field in the Braunstein-Kimble protocol.

Contribution

It provides a detailed analysis of noise effects in non-Gaussian teleportation, extending understanding beyond the Gaussian framework.

Findings

Noise behaves differently in non-Gaussian teleportation.

The output field is a superposition of input and measurement-induced fields.

Comparison reveals distinct noise impacts between Gaussian and non-Gaussian cases.

Abstract

We have recently shown that the output field in the Braunstein-Kimble protocol of teleportation is a superposition of two fields: the input one and a field created by Alice's measurement and by displacement of the state at Bob's station by using the classical information provided by Alice. We study here the noise added by teleportation and compare its influence in the Gaussian and non-Gaussian settings.