# Entangled States as Robust and Re-usable Carriers of Information

## TL;DR

This paper investigates the robustness of entangled states used as secure, reusable carriers of quantum information, demonstrating that multiple uses do not accumulate errors, thus enhancing their practicality in quantum communication.

## Contribution

It introduces a study on the noise robustness of entangled state protocols, showing they maintain integrity over multiple uses without error accumulation.

## Key findings

- Errors remain constant over multiple uses
- Protocols are robust against noise
- Entangled carriers are reusable without degradation

## Abstract

Entangled states can be used as secure carriers of information much in the same way as carriers are used in classical communications. In such protocols, quantum states are uploaded to the carrier at one end and are downloaded from it in safe form at the other end, leaving the carrier intact and ready for reuse. Furthermore, protocols have been designed for performing quantum state sharing in this way. In this work, we study the robustness of these protocols against noise and show that multiple uses of these carriers do not lead to accumulative errors, rather the error remains constant and under control.