Noise-driven informatics: secure classical communications via wire and noise-based computing

TL;DR

This paper explores how electrical noise can be used for secure classical communication and computing, offering potential advantages over quantum methods by leveraging thermodynamics and classical information robustness.

Contribution

It introduces noise-based computing and secure communication methods that outperform quantum solutions in certain practical scenarios, emphasizing thermodynamic principles.

Findings

Noise-based computing shows similarities to quantum logic.

Secure communication can surpass quantum security in practical settings.

Classical noise offers robust security leveraging thermodynamics.

Abstract

In this paper, we show recent results indicating that using electrical noise as information carrier offers outstanding potentials reminding of quantum informatics. One example is noise-based computing and logic that shows certain similarities to quantum logic. However, due to the lack of the collapse of wavefunction and due to the immediate accessibility of superposition components, the use of noise-based and quantum computers will probably be different. Another example is secure communications where, out of the unconditional security at idealistic situations, a practical security beyond known quantum solutions can be achieved and has been demonstrated. Here the keys to security are the robustness of classical information, and the second law of thermodynamics. These offer the avoidance of making error statistics and single bit security. It has the potential to restrict the practical applications of quantum communicators to the situations where no wire can be used but optical communication via fiber or via space is possible.