Teleportation with a cubic phase gate

TL;DR

This paper introduces a modified quantum teleportation scheme utilizing a cubic phase gate to enhance accuracy and reduce error, demonstrated through theoretical analysis and vacuum state teleportation examples.

Contribution

It proposes a novel teleportation method incorporating a cubic phase gate, improving fidelity and error performance over traditional schemes.

Findings

Reduced teleportation error compared to original scheme

High fidelity achieved in vacuum state teleportation

Theoretical validation of the scheme's effectiveness

Abstract

We propose a modified quantum teleportation scheme to increase the teleportation accuracy by applying a cubic phase gate to the displaced squeezed state. We have described the proposed scheme in Heisenberg's language, evaluating it from the point of view of adding an error in teleportation, and have shown that it allows achieving less error than the original scheme. Repeating the description in the language of wave functions, we have found the range of the displacement values, at which our conclusions will be valid. Using the example of teleportation of the vacuum state, we have shown that the scheme allows one to achieve high fidelity values.