Teleportation-based error correction protocol of time-frequency qubits states

TL;DR

This paper introduces a linear optical protocol for teleporting and correcting errors in time-frequency qubits, including cat and GKP states, to enhance quantum communication reliability.

Contribution

The paper presents a novel teleportation protocol that corrects temporal and frequency errors in specific time-frequency qubit states using linear optics.

Findings

Protocol effectively corrects errors in time-frequency qubits

Potential to reduce error rates in quantum communication

Applicable to cat and GKP qubit states

Abstract

We present a linear optical protocol for teleporting and correcting both temporal and frequency errors in two time-frequency qubit states. The first state is the frequency (or time-of-arrival) cat qubit, which is a single photon in a superposition of two frequencies (or time-of-arrival), while the second is the time-frequency Gottesman-Kitaev-Preskill (GKP) state, which is a single photon with a frequency comb structure. The proposed optical scheme could be valuable for reducing error rate in quantum communication protocols involving one of these qubits.