Noise-based communication and computing

TL;DR

This paper explores noise-based methods for communication and computing, leveraging thermal and Johnson-like noise for secure, low-power information transfer, inspired by biological processes and addressing miniaturization challenges.

Contribution

It introduces noise-based communication and computing schemes utilizing thermal and Johnson-like noise for secure, low-power data transfer, with potential for chip integration and enhanced security.

Findings

Thermal and Johnson-like noise can serve as information carriers.

Noise-based schemes enable unconditionally secure communication.

Potential for integration into computer chips and hardware.

Abstract

We discuss the speed-error-heat triangle and related problems with rapidly increasing energy dissipation and error rate during miniaturization. These and the independently growing need of unconditional data security have provoked non-conventional approaches in the physics of informatics. Noise-based informatics is a potentially promising possibility which is the way how biological brains process the information. Recently, it has been shown that thermal noise and its electronically enhanced versions (Johnson-like noises) can be utilized as information carrier with peculiar properties. Relevant examples are Zero power (stealth) communication, Unconditionally secure communication with Johnson(-like) noise and Kirchhoff loop and Noise-driven computing. The zero power communication utilizes the equilibrium background noise in the channel to transfer information. The unconditionally secure communication is based on the properties of Johnson(-like) noise and those of a simple Kirchhoff's loop. The scheme utilizes on the robustness of classical information and the second law of thermodynamics. It uncovers active eavesdropping within a single clock period (no error statistics is required) and it is naturally protected against the man-in-the-middle attack. Further advantages of the scheme is that the circuitry can easily be integrated on computer chips, unconditionally secure computer processors, memories and other hardware can be realized.