Open-loop quantum control as a resource for secure communications

TL;DR

This paper explores how open-loop quantum control of qubits enhances the robustness of quantum cryptographic protocols by utilizing timed measurements and unitary evolution for secure communication.

Contribution

It introduces an open-loop control scheme for qubits that improves the security and robustness of quantum cryptographic protocols based on unitary evolution.

Findings

Open-loop control increases protocol robustness.

Timed measurements enable secure data encryption.

Quantum dynamics can be effectively used for cryptography.

Abstract

Properties of unitary time evolution of quantum systems can be applied to define quantum cryptographic protocols. Dynamics of a qubit can be exploited as a data encryption/decryption procedure by means of timed measurements, implementation of an open-loop control scheme over a qubit increases robustness of a protocol employing this principle.